rack mounted meter a2500 - metering aswith the integrated load profile and various electrical...

Rack mounted meter alpha A2500

Product manual

Document name A2500_PR_E.doc Document number: 1KGL 922700 V002D, Revision 1.1 Date of version: 11.11.2003

Seite 2 von 74

Product manual 1.1 alpha A2500

COPYRIGHT NOTICE Copyright © 2003 by ELSTER Messtechnik GmbH. All rights are reserved. No part of this document may be reproduced, transmitted, processed or recorded by anymeans or form, electronic, mechanical, photographic or otherwise, translated to anotherlanguage, or be released to any third party without the express written consent of ELSTERMesstechnik GmbH.

Printed in Germany

NOTICE The information contained in this document is subject to change without notice. ELSTER shall not be liable for errors contained herein or for incidental or consequentialdamages in connection with the furnishing, performance, or use of this material. ELSTER expressly disclaims all responsibility and liability for the installation, use,performance, maintenance and support of third party products. Customers are advised tomake their own independent evaluation of such products.

Seite 3 von 74


Content 1 Overview................................................................................................................................. 6

1.1 System overview .................................................................................................................. 6 2 Referenced Documents ........................................................................................................ 6 3 Application.............................................................................................................................. 7

3.1 Essential features of the alpha meter A2500....................................................................... 7 3.1.1 High accuracy................................................................................................................. 7 3.1.2 Configuration................................................................................................................... 7 3.1.3 Integrated load profile..................................................................................................... 7 3.1.4 Wide range meter........................................................................................................... 7 3.1.5 3-wire / 4-wire applications ............................................................................................. 7 3.1.6 New meter standards ..................................................................................................... 7

4 Description of the device...................................................................................................... 8 4.1 Design features .................................................................................................................... 8 4.2 Power supply ........................................................................................................................ 8

4.2.1 Auxiliary power supply.................................................................................................... 8 4.3 Model variants ...................................................................................................................... 9

4.3.1 CT connected meter (3- or 4-wires), 50Hz .................................................................... 9 4.3.2 CT connected meter (3-wires, according Aaron-type), 50Hz ........................................ 9 4.3.3 CT connected meter (2-wires), 16.66Hz or 50Hz ......................................................... 9

5 Measured value acquisition ............................................................................................... 10 5.1 Measuring module .............................................................................................................. 10 5.2 Measuring principle............................................................................................................. 11

5.2.1 Vectored Method .......................................................................................................... 11 5.2.2 Phase shift method....................................................................................................... 11

6 Display Control .................................................................................................................... 12 6.1 Display ................................................................................................................................ 12 6.2 Display Modes .................................................................................................................... 15 6.3 Scroll mode......................................................................................................................... 16 6.4 Display test mode............................................................................................................... 16 6.5 A-button menu.................................................................................................................... 16

6.5.1 Standard mode (Menu Option "Std-dAtA") .................................................................. 16 6.5.2 Second Standard mode (Menu Option "Abl-dAtA") ..................................................... 17 6.5.3 Load profile mode (Menu option „P.01“) ...................................................................... 17 6.5.3.1 Date selection for the day block............................................................................... 17 6.5.3.2 Load profile values of the selected day ................................................................... 17

6.6 R-button menu.................................................................................................................... 17 6.6.1 Setting mode (Menu option „Set“) ................................................................................ 18 6.6.1.1 Setting date and time with pushbutton control ........................................................ 18 6.6.1.2 Set of energy/demand tariff source by using alternate and demand reset button.. 18 6.6.2 High resolution mode for test purposes (Menu option „tESt“) ..................................... 18

6.7 Set of time and date............................................................................................................ 19 6.7.1 Set of time and day through communication interface ................................................ 19 6.7.2 Set of time and date by using DCF77 antenna............................................................ 19 6.7.3 Set of time and date by using the alternate and demand reset button........................ 19

6.8 Flow chart of different display modes ................................................................................ 20 6.9 Demand reset..................................................................................................................... 23

7 Identifier system.................................................................................................................. 24 7.1 Standard data readout list.................................................................................................. 24 7.2 Service list - second data readout list ................................................................................ 25

Seite 4 von 74


7.3 OBIS formatted read and write operations......................................................................... 25 8 Tariff characteristics ........................................................................................................... 26

8.1 General remarks ................................................................................................................. 26 8.2 Energy tariff control............................................................................................................. 26 8.3 Maximum demand tariff control.......................................................................................... 26

8.3.1 Active- reactive- and apparent demand measurement ............................................... 27 8.3.2 Control options for demand tariff information............................................................... 27 8.3.3 Synchronization of the demand period......................................................................... 28

8.4 Energy and demand tariff sources ..................................................................................... 29 8.5 Oversetting of the internal tariff source.............................................................................. 29 8.6 Delta register values........................................................................................................... 29 8.7 Real time clock................................................................................................................... 30

8.7.1 General characteristics of the real time clock.............................................................. 30 8.7.2 Battery characteristic.................................................................................................... 30 8.7.3 Correction the device clock.......................................................................................... 31 8.7.3.1 Correction the device clock with „integration period end“ ....................................... 31 8.7.3.2 Correction the device clock on a minute base......................................................... 31 8.7.3.3 Correction the device clock daily ............................................................................. 31 8.7.4 Internal tariff clock ........................................................................................................ 32

9 Load profile of billing data ................................................................................................. 33 9.1.1 Features of the load profile storage ............................................................................. 33 9.1.2 Depiction of load profile in the data telegram ............................................................. 34 9.1.3 Load profile readout by using R5 / R6 - command...................................................... 35

10 Setting parameters.............................................................................................................. 36 11 Inputs / Outputs ................................................................................................................... 38

11.1 Interfaces .......................................................................................................................... 38 11.1.1 Optical interface.......................................................................................................... 38 11.1.2 CL0-interface .............................................................................................................. 38 11.1.3 RS232-C interface...................................................................................................... 38 11.1.4 RS485-inteface........................................................................................................... 38 11.1.5 Use „without baud rate changeover“ .......................................................................... 40 11.1.6 Separate data readout lists ........................................................................................ 40

11.2 Control inputs .................................................................................................................... 40 11.3 Synchronization input by using the DFC77- antenna....................................................... 40 11.4 Mechanical control output................................................................................................. 40 11.5 Electronic outputs ............................................................................................................. 41

11.5.1 Electronic control outputs ........................................................................................... 41 11.5.2 Electronic pulse outputs ............................................................................................. 41

11.6 Overload Control............................................................................................................... 42 11.7 Electronic pulse inputs...................................................................................................... 42 11.8 Auxiliary power supply ...................................................................................................... 42

12 Security functions ............................................................................................................... 43 12.1 Error messages ................................................................................................................ 43 12.2 Error messages according VDEW-specification .............................................................. 43

12.2.1 Certification relevant alarms....................................................................................... 43 12.2.2 Non Certification relevant alarms............................................................................... 44 12.2.3 Diagnostic messages ................................................................................................. 44

12.3 Log file............................................................................................................................... 45 12.3.1 Characteristic of the log file ........................................................................................ 45 12.3.2 Certified log file ........................................................................................................... 45 12.3.3 Log file format ............................................................................................................. 45 12.3.4 Depiction of a logfile in the data telegram.................................................................. 46 12.3.5 Readout modes of the log file by using R5 / R6 - commands ................................... 47

Seite 5 von 74


12.4 Events of of standard register data list............................................................................. 47 12.5 Data integrity ..................................................................................................................... 48 12.6 Password protection ......................................................................................................... 48 12.7 Display of meter status information’s ............................................................................... 49 12.8 Meter reprogramming security ......................................................................................... 50

13 Instrumentation measurement........................................................................................... 51 13.1 Instantaneous network parameters.................................................................................. 51 13.2 Profile of instrumentation parameters .............................................................................. 52

14 Calibration and test............................................................................................................. 53 14.1 Calibration ......................................................................................................................... 53 14.2 Certification of the meter................................................................................................... 53 14.3 Manufacturer specific test mode ...................................................................................... 53 14.4 Simplified test mode ......................................................................................................... 53 14.5 Simple creep and anti-creep test...................................................................................... 54 14.6 Manual test mode ............................................................................................................. 54 14.7 Checksum display............................................................................................................. 54

15 User program....................................................................................................................... 55 15.1 Reading and configuration tool alphaset.......................................................................... 55

16 Enclosure ............................................................................................................................. 56 16.1 Outside dimensions .......................................................................................................... 57 16.2 Example of connection diagram ....................................................................................... 58

17 Installation and start-up...................................................................................................... 59 17.1 General function monitoring.............................................................................................. 59 17.2 Checking the display......................................................................................................... 60 17.3 Installation comment......................................................................................................... 61

17.3.1 Fuse protection ........................................................................................................... 61 17.3.2 Auxiliary power supply connection ............................................................................. 61

18 Type key................................................................................................................................ 62 19 Name plate............................................................................................................................ 64 20 Technical data of the A2500 ............................................................................................... 65 21 Appendix............................................................................................................................... 66

21.1 Parameter of the display and data readout list ................................................................ 66 21.2 Connection diagrams........................................................................................................ 72

1 Overview Seite 6 von 74


1 Overview

1.1 System overview The document describes the basic features of alpha meter A2500 including information’s about:

• application• basic description of the meters• Data acquisition• Control and displays• Identifier System• Tariff structure• Setting parameters• Inputs / Outputs• Security features• Calibration and test• User tools for reading and configuring of the meter• Installation and start-up

2 Referenced Documents Title Version Date VDEW Lastenheftes V2.0 V2.0 12.97

Zählerstandsübertragung, Tarif- und Laststeuerung;Datenübertragung für festen und mobilen Anschluß

DIN EN 61107 08.96

Messung der elektrischen Energie; Zählerstands-übertragung, Tarif- und LaststeuerungOBIS – Object Identification System

EN 62056-61 06.02

Elektrizitätszähler in Isolierstoffgehäusen fürunmittelbaren Anschluß bis 60 AGrenzstrom; Hauptmaße für Drehstromzähler

DIN 43857Teil 2

09.78

3 Application Seite 7 von 74


3 Application With the deregulation of the energy market, in combination with a changing cost situation, newflexible tariff structures and a modern energy management are required. Remote metering andthe standardization process become more and more important. With the alpha meter A2500,designed as a rack mounted meter for high precision measurements, ELSTER has created theconditions to match these new requirements. The alpha Meter is produced in several different variants for direct and current transformerconnection. The meter conforms to the relevant specifications of the DIN and IEC standards,and complies with the recommendations of VDEW Lastenheftes V2. VDEW Specification V2.0for electronic meters.

3.1 Essential features of the alpha meter A25003.1.1 High accuracy Digital measured-value processing with a digital signal processor (DSP) and high sample ratefor accurate, flexible measured-value processing in all 4 quadrants.

3.1.2 Configuration User-friendly readout and parameterizing tool alphaSet, enabling users to define their owndifferent function variants.

3.1.3 Integrated load profile With the integrated load profile and various electrical interfaces, like the 20mA current loop,RS232 or RS485 interface the meter can easily be connected to a AMR system without usingadditional data loggers.

3.1.4 Wide range meter By using a wide range power supply the meter operate and measure in the range of 3x58/100V.. 3x240/415V. Furthermore the meter can be used for nominal current In=1A andIn=5ABecause of one meter for all voltage levels the customer can reduce his stock inventory.

3.1.5 3-wire / 4-wire applications The same meter can be used for 3-wire or 4-wire applications and therefore the customer canreduce his stock inventory.

3.1.6 New meter standards The A1500 fulfils the requirements of the following new meter standards for electronic meters

• VDEW Lastenheftes V2.,• OBIS-identifier system, EN62056-61• DIN EN 61107

4 Description of the device Seite 8 von 74


4 Description of the device

4.1 Design features The meter's dimensions and the attachment of the connection leads are as specified in DIN43862. The meter is redrawable under power by using special Essailec connectors. The electronics PCB is connected directly to the top of the housing, which itself is covered by atransparent lid. Underneath this transparent lid, which is secured in place by a lead seal fromthe power utility, is the reset button and the rating plate. The rating plate is secured to the top ofthe housing with a screw, above which the calibration label is affixed, so that the rating platecan be removed only by damaging the calibration label (see Fig. 17). After the rating plate has been removed, the user has access to the parameterization button, ahardware feature designed to protect the meter against unauthorized parameterization.

4.2 Power supply The meter's power supply is implemented using a wide range power supply (nominal voltages:3x58/100V – 3x240/415V), i.e. if two phases fail, or one phase and the neutral conductor, themeter will remain fully functional. The customer advantages are:

• No problems with earth faults• No damage of the meter by wrong connection during installation (change on ground and

neutral)• No damage of the meter during testing (connection of 3x230/400V instead of 58/100V)• Same meter can be used for 3x58/100 to 3x240/415V applications

Optionally an auxiliary wide range power supply can be used from nominal voltages of 48-230VAC or DC (See chapter 11.8).

4.2.1 Auxiliary power supply The meter can optionally be equipped with an auxiliary wide power supply. By using the externalpower supply the meter is powered by this supply. In case of loosing this supply voltage themeter will be powered by the measuring voltage. The supply voltage for the external power supply is:

• 48V - 230V AC/DC nominal voltage, +/- 15%

4 Description of the device Seite 9 von 74


4.3 Model variants The alpha Meter is available in several different model variants. Because of his wide rangepower supply and his high measuring range the identical meter can be used for all voltageranges, and for 3-wire and 4-wire applications.

4.3.1 CT connected meter (3- or 4-wires), 50Hz

- 3x58/100V .. 3x240/415V 5//1A, 1/2A, 5/6A, 5/15A Class 1, 0,5S, 0,2S - 3x240/415V 5//1A ,1/2A, 5/6A, 5/15A Class 1, 0.5S, 0,2S - 3x230/400V 5//1A ,1/2A, 5/6A, 5/15A Class 1, 0.5S, 0,2S - 3x58/100V 5//1A, 1/2A, 5/6A, 5/15A Class 1, 0,5S, 0,2S - 3x63/110V 5//1A ,1/2A, 5/6A, 5/15A Class 1, 0.5S, 0,2S

4.3.2 CT connected meter (3-wires, according Aaron-type), 50Hz

- 3x100V .. 3x240V, 5//1A, 1/2A, 5/6A Class 1, 0,5S, 0,2S - 3x100V, 5//1A, 1/2A, 5/6A Class 1, 0.5S, 0,2S - 3x110V, 5//1A, 1/2A, 5/6A Class 1, 0.5S, 0,2S - 3x200V, 5//1A, 1/2A, 5/6A Class 1, 0.5S, 0,2S - 3x230V, 5//1A, 1/2A, 5/6A Class 1, 0.5S, 0,2S - 3x240V, 5//1A, 1/2A, 5/6A Class 1, 0.5S, 0,2S

4.3.3 CT connected meter (2-wires), 16.66Hz or 50Hz

- 1x100V .. 3x240V 5//1A, 1/2A, 5/6A Class 1, 0,5S

5 Measured value acquisition Seite 10 von 74


5 Measured value acquisition

5.1 Measuring module The measuring module (Fig. 1) comprises current and voltage transformers plus a highlyintegrated customized circuit (ASIC). It has been developed specifically for the alpha Meter. The analog measured variables obtained are digitized in the ASIC by a 21-bit A/D converterusing the Sigma-Delta principle at a sample frequency of 2400 Hz, and fed to a downstreamdigital signal processor, which uses them to compute the active or reactive powers plus thecorresponding energies, and forwards energy-proportional pulses to the tariff module. By usingboth digital multiplication and integration, significant advantages can be achieved in terms ofmeasuring stability and flexibility. The scanning frequency has been selected so as to ensure that the electrical energy containedin the harmonics is acquired with the specified class accuracy.

Microcontroller

timer

tariff clock

Supercap EEPROM

Display

Controloutputs

Controlinputs

LED-pulse

opticalinterface

electricalinterface

Max reg. 1

Tariff control

push buttons

U1

U2

U3

Max reg. 2

Loadprofil

LogfileU 1, I 1

U 2, I 2

U 3, I 3

ASIC

+P

-P

+Q

-Q

Measuring module Tariff modul

power supply Input/Output modul

ripple receiver

Communication modul

Fig. 1: Functional schematics of the alpha Meter

5 Measured value acquisition Seite 11 von 74


5.2 Measuring principle The alpha Meter's basic hardware can be used to acquire the following measured variables: - active power (+P), - active power (-P), - reactive power (Q1, Q2, Q3, Q4 individually or in combination) - apparent power (+S, -S) The active power is obtained by multiplying the current and voltages values in accordance withEquation (1): p(t) = u(t) * i(t) (1) The alpha meter can calculate the reactive energy in 2 different ways:

5.2.1 Vectored Method The alpha Meter can compute the reactive power using the vector method, i.e. the reactivepower is obtained from the apparent and active power values using the following formula: __________

Q = √ S² - P² (2)

where S = Urms * Irms (3) The apparent power can be obtained from the r.m.s values for current and voltage usingFormula (2). Since the harmonic content in the two rm.’s. values, and thus in the apparent andactive power values, is also taken into account, the harmonic power values are also utilizedwhen computing the reactive power.

5.2.2 Phase shift method With this method a phase shift of 900 degree between voltage and current and a followingmultiplication of voltage and current according eq. 1 is implemented.

6 Display Control Seite 12 von 74


6 Display Control

6.1 Display The LC display of the A2500 in accordance with VDEW Specification V2.0 is illustrated in Fig. 2:

Fig. 2 LC display of the A2500 in conformity with VDEW Specification V2.0 Back lightened display The display can optionally be back lightened to be readable under dark reading conditions. Theback lightened display will be activated for 2 minutes by pressing the alternate or the demandreset button. The display consists of the following items: Operating display The definitions for import and export of energy have been agreed in terms of the load referencearrow system (VZS). For defining the transmission direction of active and reactive power, thespecifications of the load reference arrow system likewise apply. The VZS assumes that thepower utility's contracting party is importing energy (+A) from the supply grid.

Energy flow Phase indication unit

OBIS-identifier measuring value



Display of activated tariff The tariffs T1 to T4 and M1 to M4 switched on at any one time are continuously displayed. Inaddition, the following applies: Arrow to the right: Indicator for positive active power Arrow to the left: Indicator for negative active power Arrow pointing upwards: Indicator for positive reactive power Arrow pointing downwards: Indicator for negative reactive power In the case of meters with an energy feature, the relevant symbols will flash when the"electronic reversal disable" is active. The symbols for the measured variable involved havebeen switched off if the power is below the device's start-up threshold. Phase indication The phase display indicates which phases are energized. The corresponding symbols areswitched off if there is no voltage at the phase concerned. All active symbols will flash if thethree phase voltages are not occurring in the sequence L1, L2 and L3. Identifier and value range All digits are separated by dots (OBIS separator or decimal point). Time particulars (h, min, sec)are separated by colons, date particulars (year, month, day) by the top dots of the colons. Cursor field The cursor field contains 12 element positions, and provides the assignments for operationallyimportant status information located under the display. The cursors become visible when theassigned device status has materialized. In "Parameterization mode", all active cursors flash.The following abbreviations are used under cursor positions 1 to 12: T1-T4 Tariff information for energy, all active registers are declared on the rating plate M1-M4 Tariff information for power, all active registers are declared on the rating plate RS1,RS2 The cursor concerned marks the alternating positions of an internal or external tariff mechanism. RS1 / RS2 is assigned to terminals MREa / MREb. The cursor concerned is activated when a voltage leads to a demand reset on the input terminal assigned, or if the output terminal assigned is exhibiting active state. The cursor activated will flash for as long as a reset disable has been activated. CLK The cursor is continuously switched on when the internal device clock is con-

trolling the tariff mechanism. The cursor will flash if the running reserve of the device clock has been exhausted and the device clock has not then been set. SET The cursor is switched on when the meter is in setting mode. P Test mode is active (arrow flashing) Lp Load profile memory has been activated StE Control of energy and demand tariffs through external control input Assignment of functions to the cursor arrows can be parameterized.



Displaying the meter's tariff and demand reset sources The tariff source active at any particular time, plus the source for the meter's maximum reset,can be called up into the display via the identifier C.70 as a 2-digit numerical value. The Identifiers involved here are: • Indication of the demand reset source (1st digit) "0": no maximum reset "1": control input "2": internal LCR "3": internal clock "4": internal LCR / internal clock "5": internal LCR / external control input "6": internal LCR / internal clock / external control input "7": internal clock / external control input • Indication of tariff source (2nd digit)

2nd digit Energy tariff Demand tariff 0 No tariff source No tariff source 1 Control inputs Control inputs 2 Internal LCR Internal LCR 3 Internal clock Internal clock 4 No tariff source Internal clock 5 Control inputs No tariff source 6 Internal LCR Control inputs 7 Internal clock Internal LCR 8 No tariff source Internal LCR 9 Control inputs Internal clock A Internal LCR No tariff source B Internal clock Control inputs C No tariff source Control inputs D Control inputs Internal LCR E Internal LCR Internal clock F Internal clock No tariff source



6.2 Display Modes The following principles apply for display control: Alternate button

• pressing briefly (<2s) switches to the next list value or menu option• pressing for longer (2s < t < 5s) either activates the menu options currently being

displayed or causes preceding values to be skipped• pressing the alternate button for longer (>5 s) returns you from any display mode back

into the scroll mode (rolling display)

Demand Reset button• pressing it for any length of time in operating display mode always causes a reset• pressing it for any length of time in setting mode always causes the digit or value being edited to be accepted

Further principles:

• The display control and the edit function for settable values are handled by means of"single-hand operator control" in conformity with the stipulations of the VDEW -Specification, i.e. it is never necessary to operate more than one control at any one time.

• Depiction of the different values on the display in the various display modes can beparameterized.

• The default status for the display is the operating display. A change from the operatingdisplay to the "Menu [A]-key" (i.e. call or load profile) or to the "Menu [R]-key" (i.e. settingor high-resolution mode) is possible only through the "display test".

• From call, load profile, setting or test mode, you jump back into the operating displaythrough the end-of-list identifier, or automatically if no control is operated within a definedtime of 30 minutes, for example, or if the alternate button has been pressed for longerthan 5 s.

• The end of a list is designated in the display with the word "End" in the value range.• Since in setting mode values can also be edited via the data interface, the interface and

the operator control functions are mutually (logically) interlocked. Different operating modes for the display:

• Scroll Mode• Display test• Call mode "Menu alternate button"

- Standard call mode ("Std-dAtA", displaying all the list's register contents)- Second call mode ("Abl-dAtA" , displaying all the list's register contents)- Load profile call mode "P.01", displaying load profile data)- Logfile call mode "P.98", displaying log file data)

• Call mode "Menu reset button"- Setting mode ("SEt", for editing settable variables)- High-resolution test mode for testing purposes ("tESt", test mode)



6.3 Scroll mode The operating display is the standard display function. The measured values involved are dis-played in rolling mode, with the data relevant to billing being displayed for a parameterizableduration (e.g. 10 s). While a measured value is actually being displayed, then it will not beupdated in the scroll mode.

6.4 Display test mode Pressing the alternate button (<5 s) causes the meter to switch over from rolling display todisplay test mode, in which all segments on the display are activated. The display test mode isretained from approx. 3 seconds after the alternate button is released. During the display test mode, you can * press the alternate button to switch to the "A-button menu" * press the reset key to switch to the "R-button menu"

6.5 A-button menu The first value displayed in the menu list is the single-call menu option entitled "Std-dAtA".Every time you press the alternate button briefly again, more menu options as available will bedisplayed, e.g. the load profile "P.01" or the second alternate list “Abl-dAtA” . For purposes ofmenu option selection, the alternate button must be held down for at least 2 s. If the time limit after the last touch on the button has been reached (this can be parameterizedin a range from 1 min to 2 h) or the alternate button has been kept depressed for not less than 5s, the meter will automatically switch over to the scroll mode. While a measured value is being displayed in this mode, it will be updated in the display once asecond.

6.5.1 Standard mode (Menu Option "Std-dAtA") The first value displayed in the call list is the Identifier and the content of the function error.Every time the alternate button is pressed again, further data will be displayed. In order to callup data more quickly, existing preceding values can be skipped and the value following thepreceding values can be displayed. You do this by keeping the alternate button pressed downfor longer than 2 s. If the time limit after the last touch on the button has been reached (this can be parameterizedin a range from 1 min to 2 h) or the alternate button has been kept depressed for not less than 5s, the meter will automatically switch over to the operating display. Extending the time limit givesyou an option for testing the meter without any software tools, since the LED will flash either for+P, -P, +P/-P or Q1.. Q4, etc., depending on the measured variable being displayed (active orreactive power consumption). The final value in the call list is the end-of-list identifier, which is designated in the display'svalue range by the word "End".



6.5.2 Second Standard mode (Menu Option "Abl-dAtA") Furthermore the meter supports a second standard data list (“Abl-dAtA”). The handling of thislist is the same as described in chapter 4.5.1. The main difference between this 2 lists is, thatthe “Abl-dAtA” list can be set without breaking the certification seal.

6.5.3 Load profile mode (Menu option „P.01“)

6.5.3.1 Date selection for the day block The first value displayed in the list is the date of the most recent available day block in the loadprofile. Every time the alternate button is pressed briefly (<2 s) again, the display will show thepreceding available day in the load profile. If the alternate button is pressed for >2 s, then for precise analysis of the day block selected theday profile will be displayed in increments of the demand integration period, provided no eventshave led to the demand integration period being cancelled or shortened. If the time limit after the last touch on the button has been reached (this can be parameterizedin a range from 1 min to 2 h) or the alternate button has been kept depressed for not less than 5s, the meter will automatically switch over to the operating display. The final value in the call list is the end-of-list identifier, which is designated in the display'svalue range by the word "End".

6.5.3.2 Load profile values of the selected day Display of the day block selected begins by showing the oldest load profile values stored on thisday (the value stored at 0.00 h is assigned to the preceding day), beginning with the lowestEDIS Identifier from left to right (time, Channel 1 value, .. Channel n value). Every time thealternate button is pressed briefly (<2 s) again, the next available measured value for the samedemand integration period will be displayed. Once all the period's measured values have beendisplayed, they are followed by the data of the next available demand period. The last value in the call list is the end-of-list identifier, which is designated in the display's valuerange by the word "End" and which appears after the final load profile value of the dayselected. If the alternate button is pressed for >2 s, the meter will switch back to the day blockpreviously selected from the date list. If the time limit after the last touch on the button has been reached (this can be parameterizedin a range from 1 min to 2 h) or the alternate button has been kept depressed for not less than 5s, the meter will automatically switch over to the operating display.

6.6 R-button menu The first value displayed from the menu list is the setting mode menu option, called "SEt".Every time the alternate button is pressed briefly (<2 s) again, any other menu options availablewill be displayed, e.g. the high-resolution mode for test purpose, called "tESt". To select amenu option, the alternate button must be held down for longer than 2 s. The final value in thecall list is the end-of-list identifier, which is designated in the display's value range by the word"End". If the time limit after the last touch on the button has been reached (this can be parameterizedin a range from 1 min to 2 h) or the alternate button has been kept depressed for not less than 5s, the meter will automatically switch over to the operating display.



6.6.1 Setting mode (Menu option „Set“) In the setting mode, settable parameters are entered using the reset button and/or the alternatebutton. The values concerned can likewise be altered through the optical or electrical interface.While date and time are being set, the Identifier concerned is shown on the display.

6.6.1.1 Setting date and time with pushbutton control In order to set the meter's data and time, you have to press the reset button during the displaytest. The current time will then appear in the display. You press the alternate button to switch to"Set date", and the reset button to enable you to enter the time. For this purpose, the hours must be entered using the alternate button and confirmed with thereset button. You then enter the minutes and seconds. After you have confirmed your entry forthe seconds, the complete time display will flash, and will not be accepted until you havepressed the set button. After entering the time, you can enter the date into the meter in the same way. For all entries,the meter runs a plausibility check, i.e. only valid values will be accepted. After data and time have been set, the meter automatically assumes its correct setpoint status,i.e. in the case of a clock timer function the meter will autonomously switch to its ongoing tariff.For reasons of a possible maloperation, the reset disable is activated for 1 - 2 minutes at theend of this setting routine, to prevent a reset being triggered accidentally.

6.6.1.2 Set of energy/demand tariff source by using alternate and demand reset button In the same way like the setting of time & date the energy and tariff source can be set by usingthe alternate and demand reset button. The tariff source for energy and demand tariff can beselected separately.

• Internal tariff clock• Internal ripple receiver• External control inputs

For single tariff meter configuration the whole menu will not be displayed. The internal ripple receiver can only be activated if he is enabled through the basicconfiguration.

6.6.2 High resolution mode for test purposes (Menu option „tESt“) In the "Test" operating mode, the display will show the same data as in the scroll mode, butrolling, and with the difference that energy registers are displayed in high resolution. Each timethe alternate button is pressed, further data will be displayed. If the alternate button is helddown for at least 5 seconds, the meter will automatically switch to the operating display. Test mode is quit via the following events:

- formatted command- 24h after activation- [A]-button pressed >5s



6.7 Set of time and date6.7.1 Set of time and day through communication interface You can also set the date and time through the interfaces provided in the meter (optical, CLOand RS232), using a password protection feature. Another safeguard incorporated is that date/time setting is enabled only when the reset button(located underneath the power utility's lead seal) is pressed. This interlock can beparameterized. While the meter is in setting mode, the Set arrow is switched on in the display. The protocol for setting date and time has been implemented in conformity with VDEWSpecification V2.0.

6.7.2 Set of time and date by using DCF77 antenna The meter date and time can although be set by using the DCF77 antenna input. The decodingof the DCF77 signal, delivered by the active antenna, is realized inside the meter (See chapter11.3).

6.7.3 Set of time and date by using the alternate and demand reset button See chapter 6.6.1.1



6.8 Flow chart of different display modes

Scroll mode(rolling display)

[A]- button pressed short or long

[A]-button menu

[R]-button menu

[A]-button pressed short or long [R]- button pressed short or

Display test mode

Fig. 3 Changes of different display modes

[A]-button menu

Display"Std-dAtA"

Display"P.01"

Displayend of list

load profile mode

Standard modepress [A]-button short

press [A]-button short



press [A]-button long

Fig. 4 A-button menu



Fig. 5 Single call display

load profile mode

calculate date of current day

selecttime&date ofday day before

displaytime&date

calculate data of 1.register period ofselected time&date

select nextregister period

displaydata of current reg.

period





Fig. 6 Load profile display

press [A]-button short press [A]-button long

select nextvalue/previous value

displayselected value

select next value, ignore

previous values

display 1. value of the standard l ist

Standard mode



[R]-button menu

display „SEt“

display „tESt“

displayend of list

Test mode

Setting mode press [A]-button short





Fig. 7 R-button menu



6.9 Demand reset The demand reset of all energy/demand register can be executed by:

• the secured and lead-sealable demand reset button• an external electrical signal (LCR or clock)• an internal signal from the integrated clock• a demand reset request through one of the data interfaces

The demand reset of the meter possesses the following characteristics: a) A demand reset by pressing the reset button can be performed in the scroll mode or the

alternate mode([A]-mode). b) At every demand reset, a reset disable is activated, i.e. the "RS1" or "RS2" arrow in the display will flash. The demand reset disable time can be parameterized from 1min to 4.5 h.

Disable times for a new demand reset by triggering a reset through...

1 2 3 4 5

1 ... button t1 0 0 0 0 2 ... interfaces (optical, electrical) 0 t1 0 0 0 3 ... external control 0 0 t1 t1 t1 4 ... internal device clock of the internal integration period

sensor 0 0 t1 t1 t1

c) A demand reset executed through an appropriate control input is operative only if the demand reset disable time is not active. d) The demand reset disable is cancelled by an all-pole power failure. e) If during an activated demand reset disable another reset is executed through the optical or electrical data interface, then on the display all segments will be made to show the letter "E" to indicate a maloperation. f) The demand reset counting mechanism can run either from 0..99 or from 1..12, to correspond to the months of a year. The number of the reset counting mechanism simultaneously

serves as an auxiliary Identifier for the preceding values. During the register reading list thesymbol “&“ or „*“ displays whether the demand reset was activated by pressing the pushbutton or an other medium (internal clock, formatted command, control input).

1-1:1.2.1 0.134 kW 1-1:1.2.1*01 0.230 kW Demand reset activation by internal clock or external input 1-1:1.2.1&02 0.212 kW demand reset activation by push button

Remark: By use of the modulo 12 counter, the number of the counter refers to the month g) Resetting via the data interface is safeguarded by a password, and acts on both all maximum tariffs and energy tariffs.

h) The performance of a demand reset by the demand reset button of one of the interfaces willbe always done directly. Only by using an external demand reset input or the integratedripple receiver the demand reset can be delayed, if it is configured.

i) During the test mode every demand reset will be performed directly.

7 Identifier system Seite 24 von 74


7 Identifier system The alpha Meter's Identifier system can be parameterized by the user, with a total of 7 Identifierdigits provided for the display and the readout over the optical and electrical interfaces. Theuser has the option for using an own identifier system but to follow the internationalstandardization the OBIS Identifier system (EN 62056-61) is recommended (see appendix,chapter 20).

7.1 Standard data readout list In the attached table you will find a sample of a data readout list of a meter with active andreactive and demand measurement and 2 tariffs. The standard data readout list contains allbilling data.

OBIS-identifier Format on the display Length Designation F.F Xxxxxxxx 8 Error condition 0.0.0 XXXXXXXX 8 Identification number 0.0.1 XXXXXXXX 8 Additional Identification 0.1.0 XX 2 Demand reset counter 0.9.1 hh:mm:ss 8 Actual time 0.9.2 JJ-MM-TT 8 Actual date 1.2.1 XXX.XXX 6 Cumulative demand, tariff 1 1.2.2 XXX.XXX 6 Cumulative demand, tariff 2 1.4.0 XXX 3 Actual time of the demand period X.XXX 4 actual demand of the period 1.6.1 X.XXX 4 Demand, tariff 1 1.6.1.VV X.XXX Demand, tariff 1, historical value 1.6.2 X.XXX 4 Demand, tariff 2 1.6.2.VV X.XXX 4 Demand, tariff 2, historical value 1.8.1 XXXXX.XX 7 +A, active energy, tariff 1 1.8.1.VV XXXXX.XX 7 +A, active energy, tariff 1,

historical value 1.8.2 XXXXX.XX 7 +A, active energy, tariff 2 1.8.2.VV XXXXX.XX 7 +A, active energy, tariff 2,

historical value 3.8.1 XXXXX.XX 7 +R, reactive energy, tariff 1 3.8.1.VV XXXXX.XX 7 +R, reactive energy, tariff 1,

historical value 3.8.2 XXXXX.XX 7 +R, reactive energy, tariff 2 3.8.2.VV XXXXX.XX 7 +R, reactive energy, tariff 2,

historical value C.3 Xxxxxxxx 8 Status of input / outputs C.4 Xxxxxxxx 8 Status of internal signals

Remark: All parameters of the standard data readout lists can only be changed by breaking the certification seal of the meter:

7 Identifier system Seite 25 von 74


7.2 Service list - second data readout list In the attached table you will find a sample of a service data readout list of a meter. Allparameters of this list can be changed without breaking the certification seal, only a password isrequired.

OBIS-identifier Format on the display maxlength

Designation

31.7 XXX.X 6 Current phase L1 51.7 XXX.X 6 Current phase L2 71.7 XXX.X 6 Current phase L3 32.7 XXX.X 6 Voltage phase L1 52.7 XXX.X 6 Voltage phase L2 72.7 XXX.X 6 Voltage phase L3 33.7 X.XX 6 Power factor phase L1 53.7 X.XX 6 Power factor phase L2 73.7 X.XX 6 Power factor phase L3 1.7 XXX.X 6 Active demand, +P, total 21.7 XXX.X 6 Active demand, +P, phase L1 41.7 XXX.X 6 Active demand, +P, phase L2 61.7 XXX.X 6 Active demand, +P, phase L3 C.7.1 XX 2 Number of outages in phase L1 C.7.2 XX 2 Number of outages in phase L2 C.7.1 XX 2 Number of outages in phase 1 C.52 XXXXXX 6 Start date of last 3 ph. power outage C.53 XXXXXX 6 Start time of last 3 ph. power outage C.54 XXXXXX 6 End date of last 3 ph. power outage C.55 XXXXXX 6 End date of last 3 ph. power outage

7.3 OBIS formatted read and write operations The table below provides information on which single registers and OBIS Identifier can be reador written. The "R5" and "W5" commands defined in conformity with DIN EN 61107 are used forthis purpose:

ODIS -identifier

Significance Commands R5 / R6 / W5

Remarks

P.01 Read/erase loadprofile

yes / yes / yes

P.98 Read / eraseoperating logfile

yes / yes / yes

0.9.1 Read time yes / no / no 0.9.1 Set time no / no / yes 0.9.2 Read date yes / no / no 0.9.2 Set date no / no / yes

Table 1: Register for EDIS-formatted read and write functions Remark: In addition, the "R5" command can be used to read out individually all the registers contained inthe readout list.

8 Tariff characteristics Seite 26 von 74


8 Tariff characteristics

8.1 General remarks The tariff module of the alpha meter processes the counting pulses provided by the measuringmodule, monitors the integrated communication modules, and operates the meter's interfaces.Depending on the meter parameterization involved, all or only some of the functions describedbelow will be supported. It is possible to use a separate tariff source for the energy and the demand tariffs control.

8.2 Energy tariff control Overall, the meter provides 8 register sets for acquiring the following variables:

• imported active energy +A• exported active energy -A• reactive energies R1 .. R4 of the 4 energy quadrants• combination of reactive energies, e.g. +R=R1 + R2

• apparent energy a) Internal clock timer See Section 8.7.4 b) External control The meter possesses up to 6 potential-free inputs for tariff control, with the control voltage corresponding to the meter's rated voltages. The "voltage present" assignment corresponds to T1 or T2, or T3 or T4, as required.

8.3 Maximum demand tariff control 4 separate maximum registers are provided for power measurement, with their input variablesuser-selectable. The total parameters provided for maximum control are as follows:

• duration of the maximum period: 15 min (parameterizable in the range of 1..60 min)• up to 4 separate maximum registers each with 4 maximum tariffs M1 .. M4 and 4

cumulative counting mechanisms• input variables for the 4 maximum values are user-selectable, e.g. +P/Q1, +P/+Q/+S• maximum tariffs and energy tariffs are independent of each other• temporary maximum measurements• overlapping maximum measurements• each maximum value is assigned a time stamp• saving up to 15 preceding-month values



8.3.1 Active- reactive- and apparent demand measurement

The meter has the possibility to measure the maximum demand of the following 3 quantitiessimultaneously:

• active demand• reactive demand• apparent demand

The calculation of the apparent demand is done at the end of the demand period.

8.3.2 Control options for demand tariff information

There are 2 different options for controlling the various maximum tariffs: a) Internal clock timer See Section 8.7.4 c) External control The meter possesses up to 6 potential-free inputs for maximum control. The control voltage corresponds to the meter's rated voltage. The "voltage present" assignment can be selected between M1 or M2, or M3 or M4.



8.3.3 Synchronization of the demand period The integration period for the meter's maximum measurement function can be synchronized in anumber of different, parameterizable ways: • Power failure a) Integration period is ended b) Integration period is not ended • Power recovery a) A new integration period is started, and terminated synchronously with the device time a) Depending on the duration of the interruption, either the integration period ongoing at the time of the power failure will be continued, or a new (and perhaps shortened) integration period will be begun. The end of the integration period is always specified by the IP raster. • Energy tariff change a) Energy tariff is switched over, and the integration period is affected if energy and power are not being jointly controlled b) The tariff is changed after a time-delay, and synchronized with the integration period raster specified by the device clock, if it has not occurred synchronously • Demand tariff change a) The power tariff will be changed immediately, the ongoing integration period switched over, and a new integration period started b) The tariff is changed after a time-delay, and synchronized with the integration period raster specified by the device clock, if it has not occurred synchronously • Demand Reset a) Ongoing integration period is ended, new integration period is started with the beginning of the new billing period b) The reset is accepted as preparation, but not actually executed until the next time the time filed in the device comes round (this does not apply for resets with the reset button or through the optical interface) • Setting device clock a) Setting the device clock causes the demand integration period to be terminated prematurely. The following integration period is terminated synchronously with the device time, and may be shortened if the resetting has not been synchronized so as to harmonize with the integration period raster.



8.4 Energy and demand tariff sources The energy and demand tariff can be controlled by separate tariff sources (See table below):

Tariff source Energy tariff control

Demand tariff control

Internal tariff clock External inputs

8.5 Oversetting of the internal tariff source If the tariffs will be controlled by the internal tariff source it is possible to disable the internal tariffsource and set the energy and demand tariff in a predefined status by using an external controlinput or a relay of the integrated ripple receiver. After resetting the control input or the relay of the integrated ripple receiver the tariffs will becontrolled by the internal tariff source again. Control input internal tariff source energy/demand tariff

„0“ active according the internal tariff source „1“ not active selectable

8.6 Delta register values A delta value or counting mechanism increment is the energy value which has accumulated asa preceding value since the last demand reset. In comparison to the register reading, the Deltavalue represents the energy of the variable measured between two defined points in time. In thealpha Meter, Delta values and register readings can be displayed in parallel. When Delta valuesare displayed and read out, they are identified with their own Identifier, distinguishable from themeter readings.



8.7 Real time clock8.7.1 General characteristics of the real time clock The A2500's real-time clock possesses the following characteristics: • The time basis is derived from the line frequency or (on request) from a quartz with an

accuracy of 5ppm (+/- 0.5s per day). • In the event of interruptions in the mains power supply, the quartz will take over as the

clock's time basis • The energy for the running reserve is supplied by a supercap (10 days backup time). • After the running reserve has been exhausted, the device clock will start after power up with

the time and date information of the last power outage. If a device clock has beenintegrated, the cursor labeled "Clk" will flash. An associated error identifier can be read out.

• Time and date must be set manually by pressing the display and reset buttons together,

through the optical or CLO interface. • The real-time clock supplies the time stamp for all events inside the meter, such as time

stamp for maximum measurement, time stamp for voltage interruptions, etc. • The real-time clock can be synchronized by using an external DCF77-antenna (chap. 8.3) • It has been specified that two-digit year figures from 90 up to and including 99 are assigned

to the twentieth century. Two-digit year figures in the range from 0 to 89 will be linked to thetwenty-first century.

8.7.2 Battery characteristic To keep the RTC of the meter running the A2500 can optionally equipped with a exchangeableLithium-battery or a onboard soldered battery. The used battery is situated below the nameplate in the upper right corner of the meter. The features of the battery are:

• Nominal voltage: 3,6V• Nominal capacity: 0,95Ah• Temperature range: -55 ... +85oC• Life time: >10 years (nominal conditions)• Back up time for RTC: >10 years (nominal conditions)

Remark: by using the battery a parameter in the meter must be activated by using the alphaSettool



8.7.3 Correction the device clock There are several options for correcting the device clock. "Correcting" in this context means"synchronization" of the device clock, i.e. the clock's deviation lies in the range of 1% of thedemand period. In this case, a running integration period will not be restarted. If the deviation isgreater than this specified value, we speak of "setting", i.e. the clock is synchronized and theintegration period restarted.

• Correcting the real-time clock using the data interface

• Correcting the real-time clock using the alternate and demand reset buttons

• Correcting the real-time clock using the synchronization input

• Correcting the real-time clock using the DCF77 antenna input

By using the synchronization input to synchronize the device clock, a distinction must be drawnbetween the following 3 cases:

8.7.3.1 Correction the device clock with „integration period end“ The device clock can be continuously corrected using a control signal at the "Externalmeasuring period" input. If the external control signal fails, the device clock will continue to runwith its own inherent accuracy. When the "integration period end" signal re-appears, the deviceclock will immediately be corrected in the sense of "synchronization". If the deviation at thisjuncture is greater, i.e. the end of the integration period specifiable with the device clock liesoutside the time window permissible under "synchronization", referenced to the "integrationperiod end" signal arriving again, then the device clock will be set. The decision as to whetherthe device clock is to be set forwards or backwards is found by rounding to the next time intervallimit. The time window inside which the device clock is synchronized has been agreed with a timedeviation of 1% of the period, with the time involved being the time between the reference edgeof the "integration period end" signal and the reference time of the device clock.

8.7.3.2 Correction the device clock on a minute base In this procedure, the " integration period end" signal supplies a pulse for correction (setting orsynchronizing) the device clock once or several times a day. If the signal is not received, thedevice clock will continue to run with its own inherent accuracy until the signal re-appears. If thesecond value is in the range between 0 and 29 when the signal for correction arrives, then thedevice clock's second value will be set to "0", without any change to the higher-order variables(minute, hour, date). If, however, this value is in the range between 30 and 59, then the secondvalue will be set to "0" and the higher-order variables will be set to the next minute on therounding-up principle.

8.7.3.3 Correction the device clock daily In this procedure, the "integration period end" signal supplies a pulse for correcting (setting orsynchronizing) the device clock only once a day. If the signal is not received, the device lock willcontinue to run with its own inherent accuracy until the signal reappears. In order to precludemalfunctions, a time window can be set (e.g. 22:55 to 23:05), inside which the device clock willaccept the "integration period end" signal at all. In addition, you have to set a time which setsthe device clock when the "integration period end" signal is detected (e.g. 23:00).



8.7.4 Internal tariff clock The internal tariff clock can be used to control tariff switchover functions at specified times of theday. The switching times are here defined by the switching table. For up to 4 different day types(e.g. workday, Saturday, Sunday, Holiday), different switching tables can be specified. Inaddition, up to 4 seasons can be defined, with an option for having different switching tables ineach of the seasons concerned. The maximum possible number of switching tables is thus: 4 day types * 4 seasons =16 switching tables Example of a switching table: - Switching table applies for Season 1 (1 Jan - 31 March) - Within Season 1, the switching table applies on workdays only - Switching times: 06:00 T1,M1 operative 22:00 T2,M2 operative, etc. For the "Holiday" day type, the meter incorporates a Holiday table, where a year's fixed andmovable Holidays can be entered. The parameters for the integrated clock timer can be read off at the meter's display using aswitching number. Besides tariff control, the integrated lock timer is also used to form the maximum integrationperiod and the time stamps for maximum demand, load profile and logbook (Fig. 8).

maximum integration period

Switching times

time stamps for maxima,load profile, logfile

Load relay control

synchronization of maximum integration period

up to 4 day types

up to 4 seasons

leap year

oszillator or main frequency clock time basis

summer-/wintertime

movable holidays

Fig. 8 Functionality of integrated clock

9 Load profile of billing data Seite 33 von 74


9 Load profile of billing data By using the internal load profile storage the actual demand or energy over a selectable period(1..60min) can be stored. At the end of the storage capacity the oldest value of the load profilewill be overwritten by the actual one. With the load profile memory approved by the PTB, load profile memory contents areinterrogated and output in conformity with DIN EN 61107. The contents of the output data records are formatted in terms of their data structure in con-formity with EN 62056-61 (OBIS). The load profile memory possesses the following characteristics:

• Number of channels: 1-8• Measuring quantities: +P, -P, Q1, Q2, Q3, Q4, +Q, -Q, +S, -S• Memory depth: at least 420 days for 1 channel (15 min period)

remark: the size of the load profile storage decreases with the number of channels The following types of measuring values can be stored in the load profile storage:

• Demand values per period• Energy values per period• Energy Register every period

9.1.1 Features of the load profile storage • Load profiles are read out using the formatted "R5" command, which causes a load profile

formatted with EDIS to be output. The reply generated by the meter here is given as aself-sufficient telegram.

• Recorded profiles can be deleted using the "W5 " command defined to supplement DIN EN61107

Please note: erasing the load profile memory will automatically erase the logfile erase.• If the meter does not support the EDIS Identifier requested, it will return this as an echo

response. The part contained in the reply telegram between the two brackets (whichfunction as separators) is omitted completely.

• If in conjunction with the load profile readout there is no entry in the inquiry for the EDISIdentifier of a measured value, the meter will respond with all available measured values inits profile.

• If the meter does not incorporate an internal device clock, then the following data will beoutput instead of the time stamp:

- for the date of the string: "999999" (OBIS Format: D6) - for the time of the string: "999999" (OBIS Format: Z6) - for the time stamp of the string "999999999999"• The telegram formed as the reply corresponds to the form specified in OBIS. It contains in

the "Address" field of the first data record the OBIS Identifier of the first load profile excerptof the reply. This is followed, in accordance with the definition specified in OBIS, by aheader-specific number of bracketed additional values, to which are appended the likewisebracketed elements of the load profile excerpt.

• If in the interval specified there is more than one section of the load profile, then a newheader will be inserted for each such section. The formation of new profile headers during



load profile transfer is explained with the events and status changes coded in the first 8 bits(Bits 7 to 0) of the profile status word. The time stamp in the header is assigned not to thetransactions, but to the formation of the first profile value.

• The overall length of the telegram answered will depend on the size of the interval desired.The time stamps in the reply telegram are of the "ZSTs13" type. Output of the telegram'sdata always begins with the oldest interrogated value.

• If the order includes a request for a time range for which there are no entries, the meter willrespond with "P.01 (ERROR)”.

• If the order requests a Identifier which the meter does not support, the meter will merelysupply the values for the Identifier it does know.

9.1.2 Depiction of load profile in the data telegram KZ (ZSTs13) (S) (RP) (z) (KZ1)(E1) .. (KZz)(Ez) (Mw1) ... (Mwz) | <- header of load profile entry -> | <- Meas. value of load profile -> | * KZ OBIS-Identifier "P.01" * ZSTs13 Time stamp of the oldest measured value * S Profile status word

Bit Significance b7 Power failure b6 Power recovery b5 Change of time/date b4 Demand reset b3 Seasonal switchover (summer/winter time) b2 Measure value disturbed b1 Running reserve exhausted b0 Fatal device error

* RP Demand integration period in minutes * z Number of different measured values in one demand integration period * KZn Identifier of the measured values (without tariff particulars or preceding- value Identifier) * E1 Units of measured values * Mw n Measured values remark: Bit b4 can be configured with as follows:

• Bit b4 set after demand reset• Bit b4 set after 1-phase or 2-phase power outage



9.1.3 Load profile readout by using R5 / R6 - command The orders listed below can be sent to the meter: Order EDIS-Identifier

Template: GG.AA

Parameters required (the brackets are separators inconformity with DIN EN 61107)

Remarks

Readout ofload profile

P.01 Readout of the load profilecompletely available in the meter (;)

1) If you want all the measured values of the load profile to be read, then "KZn" Identifier are omitted

P.01 Complete readout of the measuredvalues with the EDIS Identifier"KZ(1..n)" (;)(KZ1) .. (KZn)

2) The semicolon must also be transferred, as a special separator

P.01 Readout of all measured values onan interval: (ZSTs11 ; ZSTs11)

3) The time stamp before the semicolon displays the beginning of the interval for readout

P.01 Readout of the measured valueswith the EDIS Identifier "KZ(1..n)" inan interval: (ZSTs11 ; ZSTs11)(KZ1) .. (KZn)

4) The time stamp behind the semicolon displays the end of the interval for readout

P.01 Readout of all measured valuesfrom the beginning of load profilerecording in the meter up to an endtime (;ZSTs11)

5) Both time stamps are located inside the interval limit

P.01 Readout of the measured valueswith the EDIS Identifier "KZ(1..n)"from the beginning of load profilerecording in the meter up to an endtime (;ZSTs11)(KZ1) .. (KZn)

6) If a time stamp is omitted, the beginning or the end of the load profile record in the meter will be used as the interval limit

P.01 Readout of all measured valuesfrom a starting point to the end ofthe record in the meter: (ZSTs11;)

7) The sequence of the values output by the meter need not correspond to the sequence in the request telegram

P.01 Readout of the measured valueswith the EDIS-Identifier "KZ(1..n)"from a starting time to the end of therecord in the meter: (ZSTs11;)(KZ1) .. (KZn)

The use of the R6-command for reading load profile data is optimized for remote metering. Theadvantage of that command is:

• Segmentation of data block• Data security of every segment• Automatic repeat of disturbed segments

=> the R6 command is optimized for remote metering

10 Setting parameters Seite 36 von 74


10 Setting parameters The setting parameters are safeguarded by a password for transmission through the optical orelectrical interface. In addition, the meter can be set so as to ensure that before transmissionbegins the reset button has to be pressed. The A2500 possesses the following parameters which can be set via the interfaces withoutbreaking any certification seal of the meter:

• Date and time (Formatted command)

• Juncture for summer/winter changeover (Formatted command)

• Maximum reset (Formatted command)

• Duration of reset disable

• Inputs for integrated clock timer- switching times- switching tables- summer/winter changeover

• Activation of tariff switchover by- internal clock timer- external tariff terminals

• Activation of maximum demand reset by- internal clock timer- external tariff terminals

• Display control- scroll time for the operating display- maximum dwell duration of a value on the display- all parameters of second display data list “Abl-dAtA”

• Reference time for external time correction via the integrated ripple control receiver orcontrol input with the associated time window

• Power utility password

• Property Number

• Meter address and meter identification in conformity with IEC 1107

• Communication baud rate

- for optical interface- for electrical interfaces

10 Setting parameters Seite 37 von 74


• Activation of setting mode- through password protection- through password protection and button control

• Thresholds of overload control

• Passwords- for setting mode via data interface- for EDIS write commands ("W5" commands)

• Time base of the meter- line frequency- internal oscillator

• instantaneous measurement- enable / disable parameters- assignment to service list (second data readout list)

• profile of instantaneous measurement- enable / disable parameters- readout options- defining of profile channels

11 Inputs / Outputs Seite 38 von 74


11 Inputs / Outputs

11.1 Interfaces Different interfaces like optical, CL0- RS232- or RS485 interface are available for reading orconfiguring the meter. Using one of these interfaces the meter can be readout by an handheldunit or PC in combination with an optical probe or by connection the meter to a modem for AMRpurposes. The data protocol is implemented according mode A,B,C or Mode D of DIN EN 61107. Thecommunication baud rates are configurable.

11.1.1 Optical interface Electrical characteristics: as per EN 61107 Protocol: as per EN 61107 Baud rate: max. 9600 baud

11.1.2 CL0-interface Electrical characteristics: DIN 66348 Protocol: as per EN 61107 Baud rate: max. 19200 baud

11.1.3 RS232-C interface Electrical characteristics: terminals brought out: RxD, TxD, Gnd Protocol: as per EN 61107 Baud rate: max. 19200 baud

11.1.4 RS485-inteface Electrical characteristics: terminals brought out: +RxD, +TxD, (-RxD, -TxD) Protocol: as per EN 61107, Status January 1994 Baud rate: max. 19200 baud By using the RS485 interface up to 32 meters can be connected with a line length of 1000m.The used protocol corresponds to EN 61107. In that case the IEC meter address should beused for reading the meters.



11.1.5 Use „without baud rate changeover“ To provide for the use of simple telephone modems, the user has the option for specifying thebaud rate of the opening sequence (under DIN EN 61107 this is 300 baud) by parameterizing itto a different value in the range of 300 .. 19200 baud. The opening sequence is performed withthe parameterized baud rate, but baud rate switchover between the two communicationpartners (meter and HHU or telephone modem) is not executed.

11.1.6 Separate data readout lists The meter data can be read out both via the optical interface and via the electrical interface.Note that there is an option for defining different readout lists for the optical and the electricalinterfaces.

11.2 Control inputs The meter provides up to 4 control inputs. The input voltage at the inputs corresponds to themeter's wide range supply voltage. Assignment of the control inputs to the correspondingfunctions is user-parameterizable.

• Energy tariff T1-T4 or demand M1-M4• Maximum demand, temporary• Maximum demand reset• Integration period synchronization

Electrical characteristics: - OFF at <= 47V, ON at >= 51V - Internal resistance >120k OHM - ON delay, typically 8 ms

11.3 Synchronization input by using the DFC77- antenna By using a S0-input of the meter it is possible to connect an external DCF77-antenna. Thedecoding of the time & date signal is realized inside the meter. With this solution the customerowns a cost effective solution to synchronize the internal clock of the meter, which gets moreand more important in the deregulated market by using the internal load profile storage. The features of the DCF77antenna input are:

• The takeover of the DCF77 time & date is caused only by detecting two correctsucceeding telegrams

• The takeover of the time & date signal is caused after every power up and 5 minute afterevery hour

• By detecting a incorrect telegram an warning will be displayed until the next correctdecoding.

11.4 Mechanical control output An optional board can be used to provide users with one potential-free control outputs (1Arelay). Here, too, assignment to the various functions involved is user-selectable.

• Maximum demand M1-M4, energy tariff T1-T4• Maximum demand, temporary



• Maximum demand reset• Integration period output• Energy direction display• System error display• Load control through integrated clock or ripple control receiver

Electrical characteristics: - Close/open contact (parameter) - Max. switching current 1A AC/DC - Max. switching voltage 250V AC/DC

11.5 Electronic outputs The standard version provides the user with 6 electronic outputs. The outputs have the followingelectrical characteristics:

• Version with SO outputs as per DIN 43864, Sept. 1986• Connection to meter's power supply possible• Max. switching current 100 mA AC/DC• Max. switching voltage: 360 V peak value• Resistance in ON state: <=25 Ohm

The electronic outputs can be used as control outputs (see chapter 11.5.1) or as pulse outputs(see chapter 11.5.2).

11.5.1 Electronic control outputs The assignment of the control outputs is user-parameterizable:

• Energy tariff T1-T4 information• Maximum demand tariff M1-M2 information• Maximum demand reset• Alarm indication• End of interval• Overload conditions• Power outage (single or 3-phase)

11.5.2 Electronic pulse outputs The assignment of the pulse outputs to the individual measured variables is user-parameterizable:

• Active energy +A (import)• Active energy -A (export)• Reactive energy R1• Reactive energy R2• Reactive energy R3• Reactive energy R4• Combinations of measured variables, such as

+A/-A +R=R1+R2



11.6 Overload Control With the A2500 it is possible to use an control output for load control opportunities. Afterexceeding a predefined threshold an output contact can be closed (opened). The user candefine 2 different thresholds for up to 2 control outputs.

a) The format of the selectable overload threshold and the demand are the same.b) At the begin of the period the output contact will be opened (closed)c) The output contact will be closed (opened) under the following conditions:

P15 > Pthreshold

with P15 : actual 15min demand ( P15 = P * t / tp) Pthreshold : overload threshold tp : demand period (15min) t: actual time of the 15min demand period

d) example

nominal voltage: 3x230/400V current: 6A Overload threshold: 0.5kW

t = (Pthreshold / P) * 15min = 0.5/(3*230*6)*15min = 01:49 (mm:ss)

00:00 15:00 30:00 01:49 16:49

11.7 Electronic pulse inputs In the standard configuration of the A2500 the user can have 1 pulse input (by not using theDCF77 decoding input). Optionally 2 more pulse inputs can be used. All pulse inputs arerealized according the S0 standard. Every pulse input can get a separate pulse constant. The summation of the pulses incombination with the pulse constant will be counted in a separate register which can be readoutby the standard register data list. The pulse input 1 can be used as:

• DCF77- antenna input• S1-Pulse input• Synchronization input (attention! No connection to 230V, only 27V DC possible.

11.8 Auxiliary power supply With the A2500 an auxiliary wide range power supply with the following characteristic can beused as an option:

• 48V ... 230V AC/DC +/-15% By connecting the meter to an auxiliary power supply the total consumption of the meter will bedelivered automatically by the auxiliary power supply. After the auxiliary power supply fails theconsumption of the meter has to be delivered by the voltage transformers.

12 Security functions Seite 43 von 74


12 Security functions

12.1 Error messages The A2500 electronic meter regularly executes self-test routines running in the background.These are used to test all important parts for proper functioning. If there is a malfunction or an operator error, the error messages and/or diagnostic alarms onthe display will output a detailed error Identifier, which can be evaluated via the optical orelectrical interfaces. It can contain one or more error messages.

12.2 Error messages according VDEW-specification There is also an option for displaying the error message in conformity with the EDIS IdentifierNumber system and the VDEW Specification (Identifier "F.F"). Note that the VDEWSpecification subdivides errors into 4 groups. The significance of the individual bits in eachgroup can be selected on a manufacturer-specific basis. In the alpha Meter, the followingspecifications for fatal errors apply, beginning from the left:

12.2.1 Certification relevant alarms Error identification with EDIS Identifier F.F If an error of this kind occurs, the meter's certification will be cancelled, and the display will befrozen ("F.F * * * * * * * * "). An error message of this kind cannot be acknowledged in themeter's setting mode. The error identifier can also be read out through the electrical interface.

0 0 0 0 0 0 0 0 | | | | | | | | | | | | | | x x: gen.: other fatal errors | | | | x x: gen.: fatal checksum errors | | | | 0 1: checksum error of parametrisation class | | | | 0 2: checksum error of billing data | | | | 0 4: checksum of ELSTER parametrisation class | | | | | | x x: allg.: fatal error during read or write operation | | 0 1: I²C-Bus-error | | 0 2: communication error with large load profile storage | |x x:



12.2.2 Non Certification relevant alarms Error identification with EDIS Identifier F.F.1 If an alarm of this kind occurs, the display will be frozen ("F.F.1 * * * * * * * * "). An alarm of thiskind can be acknowledged in the meter's setting mode, and likewise read out through theelectrical interface.

0 0 0 0 0 0 0 0 | | | | | | | | | | | | | | | 1: communication error with integrated ripple receiver | | | | | x x: reserved | | | | 1: non fatal checksum error odf setting class | | | 1: terminal cover removal detection | | x reserved | 1: battery change necessary1: lost of time and date

12.2.3 Diagnostic messages Error identification with EDIS Identifier F.F.2 If a diagnostic message of this type occurs, it is output on the display in a rolling depiction with"F.F.2 * * * * * * * * ". A diagnostic message of this kind can likewise be read out through theelectrical interface.

0 0 0 0 0 0 0 0| | | | | | | || | | | | | | 1 failure of one or more phase voltages | | | | | | 1 One time communication error between meter uP and meter chip| | | | | 1 reverse run detection| | | | 1 One time communication error between meter uP and ripple receiver| | | 1 load profile stopped | | 1 Overload 1 exceed| | 2 Overload 2 exceed

| 1 no correct DCF77-signal receipt x: reserved



12.3 Log file12.3.1 Characteristic of the log file By using the logfile of the meter the following events can be recorded with the actual time &date stamp:

• Power outage (3-phase and/or per phase)• Power up (3-phase and/or per phase)• Change of time & date• Malfunction of the meter• Demand reset• Reset of load profile/logfile• Energy or demand tariff change• Loss of time & date• Change of meter configuration

12.3.2 Certified log file The log file of the meter can be used as a „certified log file“. It is not possible to delete the logfile without breaking the certification seal. Therefore it is allowed to change the meter LED andpulse output constants under the following conditions:

• The indication of the pulse constant have to be displayed on the LCD, not on the nameplate

• The change of the pulse constant is done by formatted command• Every change of the pulse constants will be registered in the log file with

Time & date stamp: identifier, previous constant, new constant• The logfile can only be erased by breaking the certification seal• The load profile storage has the same size as the load profile storage

12.3.3 Log file format The meter's operating logbook entries can be read out in accordance with the procedureselected for outputting the load profile: • The operating logfile is treated like a load profile. The Identifier "P.98" designates the

operating logbook of the VDEW Specification meter• The operating logfile is read out using the "R5" formatted commands, which are specified

as follows to supplement DIN EN 61107: The "R5" command causes a load profile formatted with EDIS to be output. The answergenerated by the meter in response is given as a self-sufficient telegram.

• Erasure of the operating logfile is performed using the "W5" command defined to supple-ment DIN EN 61107.

Erasing the logfile automatically causes the load profile memory to be erased• The telegram supplied as a reply corresponds to the form of a logfile profile as specified in

EDIS.• If a time range is requested in the order, but there are no entries for it, the meter will

respond with "P.98 (ERROR)”.• The status word describes the event or the status change which has led to the event in the

logbook. In the status bit, however, it is perfectly possible for more than one status bit to beset to "1". Which event entails which element information is defined below:



12.3.4 Depiction of a logfile in the data telegram

KZ (ZSTs13) (S) () (z) (KZ1) .. (KZz) (Element1) ... (Elementz) | <- Header of the log file entry -> | <- content of the log file - > |

- KZ OBIS-Identifier“P.98” - ZSTs13 Time stamp of logbook entry - S Profile status word, whose change occurred at the time ZSTs13 - () Corresponds to "RP" with load profiles, not required here - z Number of elements in a logfile entry; if no element is required, the bracket content is set to "0" - KZ1 Identifier of the element "(Element1)" in the logfile entry

Bit Identifier Unit Format Meaning Remark b15 --- --- --- --- not used b14

--- --- --- Erase load profile The time stamp entry contains date & time ofthe LP memory erasure

b13

---

--- --- Erase logbook The time stamp entry contains date and time of the logbook erasure

b12 --- --- --- --- Not used b11 --- --- --- --- Not used b10 --- --- --- End of impermiss.

operating condition The time stamp entry contains date and time ofthe event

b9 --- --- --- Impermissibleoperating conditiondetected

The time stamp entry contains Date and time of the status concerned

b8

---

--- --- Set variables The time stamp entry contains the date andtime when the variables were set

b7 --- --- --- 3-phase powerfailure

The time stamp entry contains date and time ofthe event

b6

--- --- --- Power up after 3-phase failure

The time stamp contains date and time of theevent

b5 0.9.1 0.9.2

none none

ZS6, ZS7 DS6, DS7

Device clock hasbeen set New time New date

1) The time stamp of the logbook containsdate/time of the clock before setting

2) The logbook's element designated by "Date" contains the date after the clock has been set3) The logbook element designated by "Time " contains the time after the clock has been set

b4

---

--- --- Reset The time stamp of the logbook entry containsdate and time of the event

b3 0.9.1 0.9.2

none none

ZS6, ZS7 DS6, DS7

Summer/winter time changeover New time New date

1) The time stamp of the logbook containsdate/time of the clock before setting

2) The logbook's element designated by "Date" contains the date after the clock has been set3) The logbook element designated by "Time " contains the time after the clock has been set

b2

---

--- --- Measured valuedisturbed

The time stamp entry contains date and time ofthe status change

b1

---

--- --- Running reserveexhausted

The time stamp entry contains date and time ofthe status change

b0 F.F

none

S8

Fatal device error

1) The time stamp contains date and timeof detection of the fatal error status

2) The element content contains the error identifier as a 4-byte word.



12.3.5 Readout modes of the log file by using R5 / R6 - commands The orders listed below can be sent to the meter: Order OBIS

Identifier Template: GG.AA

Parameters required (the brackets are separators inconformity with DIN EN 61107)

Remarks

Readout ofoperatinglogbook

P.98 Readout of the operating logbookcompletely available in the meter (;)

1) The semicolon mustAlso be transferred, asa special separator

P.98 Readout of an interval:

(ZSTs11 ; ZSTs11)2) The time stamp before

the semicolon de-signates the begin ofthe readout interval

P.98 Readout from the beginning of thelogbook record in the meter up to anend time (;ZSTs11)

3) The time stamp behind the semicolon designates the end of the interval for readout

P.98 Readout from a starting time up tothe end of the record in the meter: (ZSTs11;)

4) Both time stamps are inside the interval limits 4) If a time stamp is omitted, then the beginning or the end of the logbook record in the meter will be used as the interval limit

12.4 Events of of standard register data list In addition to the logfile, the following events, errors or operating malfunctions can be outputtedin the A2500 in the normal readout mode, using the appropriate OBDIS Identifier:

• Number of total duration of all power failures• Number of power failures per phase• Beginning and end of the last interruption in power supply• Number of communication processes• Number of maximum resets• Date and time of the last maximum reset• Number of mains power failures• Date of last parameterization• Error messages• Status information (wrong rotation field, power outage, etc., see chapter 9.7)



12.5 Data integrity In designing the A1500, special attention has been paid to measuring stability and the integrityof the billing data acquired. The extensive integrity concept is based on several differentcomponents. Crucial parts of the hardware are in redundant design. Billing data are, forexample, filed in an EEPROM and also held in a buffered RAM. This means the integrity ofthese data can be cross-checked. In the software, checksums are regularly formed for thecrucial billing and parameterization data. Any malfunction is immediately indicated on thedisplay with an informative error message. There is also an option for closing a forwardingcontact, if a malfunction occurs. Data are saved automatically in the EEPROM:

• during an all-pole power failure• after a tariff or maximum switchover• or at the latest every 24 h

12.6 Password protection The alpha Meter possesses a password protection feature on 2 different levels, enabling all theparameters accessible for the customer to be protected.

• Customer Password 1 Protection for EDIS-formatted write commands ("W5" commands)

Protection for all the meter's setting parameters

• ELSTER password Protection for specific areas of the meter not accessible to the customer



12.7 Display of meter status information’s Detailed status information for the meter regarding the state of its inputs and outputs can beread out using appropriate status words, and shown on the display. • Status of the inputs/outputs (Status Word 1)

Interpretation of the status word with the OBIS-Identifier C.3:

0 0 0 0 0 0 0 0 | | | | | | | | | | | | | | x x: gen.: status of the control inputs | | | | | | | 8 Terminal 16 is switched on (Input 3) | | | | | | | 4 Terminal 17 is switched on (Input 4) | | | | | | | 2 Terminal 18 is switched on (Input 5) | | | | | | | 1 Terminal 19 is switched on (Input 6) | | | | | | 8 Terminal 13 controls T1/2 and is switched on (Input 1) | | | | | | 4 Terminal 33 controls T3/4 and is switched on (Input 2) | | | | | | 2 Terminal 14 controls M1/2 and is switched on (Input 1) | | | | | | 1 Terminal 34 controls M3/4 and is switched on (Input 2) | | | | x x: gen.: status of the relay outputs | | | | 8 Relay Output 1 is switched on | | | | 4 Relay Output 2 is switched on x x x x: Reserved or not used

• Status of internal control signals (Status Word 2)

Interpretation of the status word with EDIS Identifier C.4:

0 0 0 0 0 0 0 0 | | | | | | | | | | | | | | | 1 Maximum tariff M1 | | | | | | | 2 Maximum tariff M2 | | | | | | | 4 Maximum tariff M3 | | | | | | | 8 Maximum tariff M4 | | | | | | 1 Energy tariff T1 | | | | | | 2 Energy tariff T2 | | | | | | 4 Energy tariff T3 | | | | | | 8 Energy tariff T4 | | | x x x Reserved or not used | | 8 Directional signal, active + | | 4 Directional signal, reactive + x x Reserved or not used



• Status of internal operating states (Status Word 3)

Interpretation of the status word with EDIS Identifier C.5:

0 0 0 0 0 0 0 0 | | | | | | | | | | | | | | | x reserved | | | | | | 8 Voltage L1 | | | | | | 4 Voltage L2 | | | | | | 2 Voltage L3 | | | | | | 1 Correct rotating field | | | | | x Reversal disable, active (Reverse warning) | | | | 8 Start-up, active | | | | 4 Start-up, reactive | | 8 Parameterization mode | | 4 Setting mode | | 2 Tariff source clock | | 1: Tariff source ripple control receiver | x Reserved or not used

8 Reset disable, manual4 Reset disable, opt. Interface2 Reset disable, electrical Interface

12.8 Meter reprogramming security The A2500 meter can be configured by using one of its interfaces (electrical or optical). Thesetting parameters are secured by a meter password (see chapter 10). Billing parameters are additionally secured by an push button, which is located below acertification label. The handling to enable/disable the reprogramming of the meter is describedbelow:

• opening the screw below the certification label (see fig 9) and press the parametrizationbutton.

• If the meter is in the parametrization mode all cursors on the LCD are flashing• After power outage or sending a formatted command by optical port to the meter the

meter parametrization will be disabled and only setting parameters can be changed.

Fig 9: Parametrization button of the A2500

13 Instrumentation measurement Seite 51 von 74


13 Instrumentation measurement

13.1 Instantaneous network parameters The A2500 meter supports the measurement of the following instantaneous parameters like:

• voltage and current per phase• Phase angle of current and voltage per phase (referenced to voltage in phase 1)• Power factor per phase• active-, reactive- and apparent power per phase• active-, reactive- and apparent power (total)• frequency• 3 selectable harmonics in current and voltage per phase• total harmonic distortion (THD) in current and voltage per phase

All parameters can be displayed on the LCD or readout by the optical or electrical interface. Theactivation / deactivation of the measurement can be done without breaking the certification seal.

All instantaneous parameter can be assigned to the standard data readout list or in a separateservice list.

The calculation of the network parameters is realized with an accuracy of 0,5% or 1% for theharmonic parameters.

Remark:- all parameters like phase angle or harmonic calculation are referenced to phase L1- the following restrictions have to be considered for a 3-wire meter, 2 system meter

- all calculations are referenced to phase L2- all parameters of phase 2 are equal 0

- The updating of the calculation and measuring of the instantaneous data will bedone with the following time period

- Voltage, current, active-, reactive- and apparent power, frequency, powerfactor, phase angle of current and voltage

8 seconds for all values- 3 selectable harmonics in current and voltage per phase

24 seconds for all values- Total harmonic distortion (THD) in current and voltage per phase

44 seconds for all values

The total updating time will be about 76 seconds if all instrumentation data areenabled.

13 Instrumentation measurement Seite 52 von 74


13.2 Profile of instrumentation parameters The load profiling of the network parameters supports the following characteristic:

• use of EN61107 protocol, identical to the readout of the load profile of the billing data• readout by optical and electrical interface• Separate load profile interval (1 .. 60min)• All parameters can be changed without breaking the certification seal• up to 8 load profile channels• recording of the following parameters

• voltage and current per phase• Phase angle of current and voltage per phase• Power factor per phase• active-, reactive- and apparent power per phase• active-, reactive- and apparent power (total)• frequency• 3 selectable harmonics in current and voltage per phase• total harmonic distortion (THD) in current and voltage per phase

• recording type per channel• average value per interval• Minimum value per interval• Maximum value per interval

• Data storage depends on the size of the load profile of the billing data

The status bits of the network paramater profile are designed as :

MG: Measurement disturbed The bit is set at the end of the interval, if after an initialisation or after a power up not all values are calculated.

UV: Change of time & date With every time&date change the actual interval will be aborted

SA: Power outage With every power outage the actual interval will be aborted

SW: Power up After every power up the bit will be set at the end of the interval

The calculation of the network parameters is realized with an accuracy of 0,5% or 1% for theharmonic parameters.

14 Calibration and test Seite 53 von 74


14 Calibration and test

14.1 Calibration The alpha meter A1500 has been adjusted in the factory, with the calibration constants matchedto the software concerned. Subsequent calibration by the customer is not required.

14.2 Certification of the meterDetailed information regarding the meter certification are described in the document „Regeln fürdie eichtechnische Prüfung des elektronischen alpha Zählers AEM500/A1500“, 1KGL 921530V004.

14.3 Manufacturer specific test mode By sending a formatted command through the optical interface, the meter can be put into aspecial test mode, for reducing the test duration’s involved. In this test mode, the followingparameters can be selected:

• Automatic increase in the decimal places for energy values to 3, 4 or 5 • Increase in the LED's flashing frequency (Imp/kWh)

• Increase the flashing frequency (Imp/kWh) of the pulse outputs

• Assignment of measured variables (+P, -P, Q1 .. Q4) to the LED • Selection of desired energy (T1-T4) or demand tariff (M1-M4)

If you switch over to call mode during the test mode, the Identifier selected and thecorresponding measured value will remain on the display until a new call is made or the powersupply is interrupted. The measured-value display is continually updated. The test mode can be quit via the following events:

• Formatted command• 24 hours after activation• pressing the [A]-button >5s

14.4 Simplified test mode For a simple function test routine not requiring any special software tools, you can use thefollowing function: if you select a power or energy value in the display, the LED will flash eitherin accordance with (+P/-P) or in accordance with the reactive power (Q1 .. Q4). This makes itrelatively easy to detect which value is being measured. The maximum retention time of thedisplay value can be set by the customer. If you press the parameterization key before this test, then the display values selected will beretained in the display.

14 Calibration and test Seite 54 von 74


14.5 Simple creep and anti-creep test The shortened creep and anti-creep test can be shown on the LC display or the shared LED. • Display Arrow in display "ON": meter starts measuring

Arrow in display "OFF": no energy is being measured. This applies for all 4 possible energy types (+P, -P, +Q, -Q)

• LED

The "Standstill" function and "energy-proportional pulse output" are indicated for eachenergy type by a shared LED. "Standstill" is signaled by a steady-light at the LED. Energy-proportional pulses occur as optical "momentary pulses", with a duration in the 80ms range.

14.6 Manual test mode The test mode is called up using the meter's reset button (see Section 4.7.2). In this mode, allenergy registers are "high-resolution". The resolution of the first digit of the energy registerviewed from the right corresponds at least to the resolution of the optical test output.

14.7 Checksum display By configuration it is possible to display a checksum over all setting- and parametrizationclasses of the meter. With that 8 digit number is very easy for the customer to proof, if themeters have an identical parameterization.

15 User program Seite 55 von 74


15 User program

15.1 Reading and configuration tool alphaset The alpha Meter A2500 can be read out, set and parameterized via the optical, CLO or RS232interface, in accordance with the EN 61107 protocol. For this purpose, you need the alphaSET readout and setting tool, which can be used to alterand read out the meter's register contents, load profile and logfile data and all settingparameters. The program is a 32-Bit application and runs under Windows 95/98, Windows2000, Windows XP and Windows NT. AlphaSET supports the following functionality:

Readout parameters• standard data list• Service list (second data readout list)• Log file• Load profile of billing data• Profile of instrumentation parameters• Complete meter configuration

Change of meter parameters

• Identification and passwords• Switch time clock parameters• Demand reset parameters• Baud rates• Pulse constants• Load profile parameters of billing data• Instrumentation parameters• Parameters of instrumentation profile

Formatted commands

• Set time and date• Set pulse constant• Reset all counters• Reset profile of instrumentation parameters• Reset load profile of billing data• Reset register data

All parameters can be readout or changed remotely by using transparent GSM orPSTN modems

16 Enclosure Seite 56 von 74


16 Enclosure The housing of the A2500 is designed for rack mounted usage. The connections for currentvoltage and additional input/outputs are situated on the back of the enclosure. The specialEssailec connectors allow the user to withdraw the meter without disconnection the voltage andcurrent cables.

Fig. 10 Front and back side of the alpha A2500

Fig. 11 A2500 installed in a 19” rack

Fig. 12 backside of the 19” rack



16.1 Outside dimensions

Fig. 13 outside dimensions of the A2500

12345

67

8

9

249

200

112

255

29

10

1 F

ront

plat

te F

raes

teil

2 A

cryl

glas

plat

te 2

3 H

alte

plat

te 4

Acr

ylgl

aspl

atte

1 5

Grif

fe 6

Sch

wei

ssgr

uppe

Geh

aeus

e 7

Sei

tenw

and

re.

8 S

teck

erpl

atte

II 9

U-B

lech

10 M

etal

lfron

tpla

tte11

Sch

iebe

r

11

A

B

202.

8

132.

5

Sch

nitt

A-B



16.2 Example of connection diagram

+AA +AA

A01 B1 A1 A02 B2 A2 A03 B3 A3 B0 B4 B5 B7 B8 C7 C0 C6 C1 C2 C3 C4 C9

Fig. 14: Connection diagram C B A

5 0 5 0 04 03 02 01

6 1 1 6 1 7 2 7 2 8 3 8 3 9 4 9 4 4 3 2 1

Fig. 15 Essailec connectors The A2500 standard configuration is with Essailec connectors of block A, B, C. Optionally 2more blocks (D, E) will be supported.

-AA +RA -RA COM +AA

-

MPE

17 Installation and start-up Seite 59 von 74


17 Installation and start-up

17.1 General function monitoring As soon as the meter has been connected to the power supply, a corresponding indicator in thedisplay will show that the phase voltages L1 to L3 are present. If the meter has started up, this will be indicated directly by an arrow in the display, and by theenergy pulse LED, which will flash in accordance with the preset pulse constant (Fig.15).

Fig 16: Front view of the meter On the front panel the following features are displayed:

1 LED for energy pulses 2 optical interface acc. EN61107 3 name plate data 4 approval label 5 alternate button 6 demand reset button 7 parameterization button (below the approval label)8 CT/VT ratio label9 Optical display button

0.9.1 actual time0.9.2 Actual date1.6.1*vv Demand, M1, +P2.6.1*vv Demand, M1, -P1.8.0*vv Energy, T0, +A2.8.0*vv Energy, T0, -A3.8.0*vv Energy, T0, +R4.8.0*vv Energy, T0, -R

CT connected meter class 0,2S / 1A1550-W835-511-OS4-1145C-V0000Ser.Nr. 92690001 2001

3x58/100 ... 3x240/415V, 5//1A, 50Hztm = 15min, te = 9sRL = 100.000 Imp/kWh, kvarhRA = 50.000 Imp/kWh, kvarh

T1 Set LP M1 P RS

WV

IEC1107

P-buttonA-button

R-button

1

2

3

4

5

8

7

4

9



17.2 Checking the display After the meter has been properly connected, its function can be tested as follows: Scroll mode As long as the alternate button is not pressed, the scroll mode will

appear. Depending on the version involved, this may consist of onevalue or of several values, shown in a rolling display mode.

Display check When the alternate button is pressed, the first thing to appear is the

display check. All segments of the display must be present. Pressing the alternate

button will switch the display to its next value. Error message If the display check is followed by an error message, it can be

interpreted as explained in Section 9. Fast run-through If the alternate button is repeatedly pressed at intervals of 2s < t <5s ,

all the main values provided will appear. Phase failure Display elements L1, L2, L3 are used to indicate which phases of the

meter are energized. Rotating-field detection If the meter's rotating field has been inversely connected, the phase

failure detection symbols will flash. Anti creep check If the meter is in idling mode, the energy pulse diode will be

continuously lit up. The relevant arrows (P,Q) on the display are alsoswitched off.



17.3 Installation comment17.3.1 Fuse protection

Attention ! In the application of meters in the low voltage level the voltage path is direct connected to thephases. Thereby the only security against a short circuit are the primary fuses of some 100A.In that case the whole current is running inside the meter or the connection between phase -phase or phase – neutral, which can cause a lightening or a damage against persons orbuildings.The recommendation for CT connected meters in the low voltage level is the usage of fuses inthe voltage path with a maximum of 10A (See fig. 17).

Fig.17 Connection of a CT meter in the low voltage level

17.3.2 Auxiliary power supply connectionBy using an auxiliary power supply it is recommended to use a 1A inert fuse to protect the circuitagainst a short circuit.

18 Type key Seite 62 von 74


18 Type key A2500- _ _ _ _ - _ _ _ - _ _ _ - _ _ _ _ _ - _ _ _ _ _

CT connection W 3x58/100V .. 3x240/415V 0

3x230/400V 1 3x200V (3-wire) 2 3x58/100V 3 3x63/110V 4 3x100V (3-wire) 5 3x110V (3-wire) 6 1x100V .. 1 x230V (16,66Hz) 8 1x100V .. 1 x230V (50Hz) A

3x100V ... 3x240V (3-wire) C 5 (6) A 2 1 (2) A 3 5 // 1 A 4

5 (15) A A class 0,2S 3 class 0,5S 5

class 1 1 quantity +P (1.0) 1 quantity +P,-P (1.1) 2 quantity +P,+Q (2.0) 3 quantity +P,Q1,Q4 (2.1) 4 quantity +P,-P,+Q,-Q (3.0) 5 quantity +P,-P,Q2,Q3 (3.1) 6 quantity +P,-P,Q1..Q4 (4.0) 7 quantity +P,Q1 8 quantity +P,+Q,-Q 9 quantity +P,-P,+Q,-Q,Q1,Q3 A

quantity +P,+Q,Q4 F 1 energy tariff 1 2 energy tariffs 2 3 energy tariffs 3 4 energy tariffs 4

1 demand tariff 1 2 demand tariffs 2 3 demand tariffs 3 4 demand tariffs 4 0 no demand tariff 0

18 Type key Seite 63 von 74


A2500- _ _ _ _ - _ _ _ - _ _ _ - _ _ _ _ _ - _ _ _ _ _ No ripple receiver O

real time clock with calendar E real time clock + tariff source S No clock O | running reserve clock 10 days 8 Battery (10 years) L No clock 0 1 external control input 1 2 external control input 2 3 external control input 3 4 external control input 4 no external control input 0 1 mechanical output relay 1 no output relay 0 1 electron. output relay (pulse or control output) 1 2 electron. output relay (pulse or control output) 2 3 electron. output relay (pulse or control output) 3 4 electron. output relay (pulse or control output) 4 5 electron. output relay (pulse or control output) 5 6 electron. output relay (pulse or control output) 6

no electronic output relay 0 Load profile storage, 1..8 channels., 420 days 5 No load profile storage 0 electrical interface, CL0 C electrical interface, RS232 R electrical interface, RS485 S

no electrical interface O Display according VDEW (V2.0) V 1 pulse input or 1 DCF77-antenna input 1 2 pulse inputs or 1 pulse input and 1 DCF77-antenna input 2

3 pulse inputs or 2 pulse input and 1 DCF77-antenna input 3 no pulse input 0

auxiliary power supply 48-230V AC/DC H no auxiliary power supply 0

reserved 0 nominal frequency, 50Hz 0 nominal frequency, 60Hz 1 nominal frequency, 16,66Hz 2

19 Name plate Seite 64 von 74


19 Name plate The alpha Meter's rating plate contains the following mandatory information: - Property Number - Accuracy Class - Serial Number - Output and test pulse constants - Manufacturer - Meter and consumption type - Model designation - Symbol for degree of protection - Year of manufacture - identifier system - Conformity symbol - Rated voltage - Rated/Limit current intensity ratio - Rated frequency

Fig. 18 Example of the A2500 nameplate

20 Technical data of the A2500 Seite 65 von 74


20 Technical data of the A2500 Nominal voltage 4-wire, 3 systems

3-wire, 2 systems 2- wire, 1 system

3x58/100V .. 3x240/415V, (+/- 20% Un) 3x100V .. 3x240V, (+/- 20% Un) 1x100V ... 1x240V, (+/- 20% Un)

Nominal frequency 50/60Hz, 16.66Hz +/- 5%

Rated/limit current Continuous current Short duration

5//1, 1(2)A or 5(6)A other ranges on request 300A für 0,5s

Starting current <1mA

accuracy class 1 / 0,5S / 0,2S

Power supply Nominal voltage Wide range power supply

3x58/100V .. 3x240/415 (+/-20%Un) Still operates even with the failure of 2phases, or one phase and the neutral

4 control inputs

Control voltage Switching thresholds Isolation

Max. 276V AC „OFF“ at <47V, „ON“ at >51V 6kV, 1,2/50us between input and othercircuits

6 electronic outputs - pulse outputs or - control outputs

DC or AC voltages voltage range max. current

5V .. 265V <=100mA

3 pulse inputs

Pulse input / Synchronization input / connection for DCF77 antenna available

Acc. S0-Standard DIN 43864

1 mech. relay output max. switching power max. voltage / current

1325VA, 107 operations 265V DC/AC, 1A DC/AC

Internal tariff source

4 tariffs, 4 seasons weekday dependent tariff accuracy

> 10 days > 10 years < 5ppm (<0,5s per day)

RTC running reserve time

Supercap Battery

> 10 days > 10 years

Temperature conditions

Operating temperature Storage temperature Humidity Temperature coefficient

-30°C ... +60°C -40°C ... +80°C 0 .. 100% re. Humidity, non condensing 0,01% per oC (PF=1), <0,02% (PF=0,5)

interfaces Optical interface CLO or RS232 or RS485

As per DIN EN 61107 max. 19200 Baud

Auxiliary power supply Wide range power supply 48V–230V , (+/- 15 Un AC or DC)

EMC compatibility

Surge withstand (1,2/50us) Dielectric test

6kV, Rsource = 2 Ohm 12kV, Rsource = 40 Ohm *) 4kV, 1 min, 50Hz

Power consumption

Voltage path Current path Auxiliary power supply

<0,8 W, <1,2 VA per phase <0,01W, <0,01VA per phase <2,3W, <5,2VA

Connections Essaillec connectors withdrawable under power

Housing 19 inch rack mounted metal box

weight 4kg

21 Appendix Seite 66 von 74


21 Appendix

21.1 Parameter of the display and data readout list The following parameters (identifier + value) can be displayed or readout by the optical orelectrical interface.

OBIS-identifier description M-K GG AA T vv Identification 1-1: 0 0 0 Utility identification #1 (ASCII) 1-1: 0 0 1 Utility identification #2 (ASCII) 1-1: 0 0 2 Utility identification #3 (ASCII) 1-1: 0 0 3 Utility identification #4 (ASCII) 1-1: 0 0 4 Utility identification #5 (ASCII) 1-1: 0 0 5 Utility identification #6 (ASCII) 1-1: C 1 0 Firmware checksum 1-1: 0 2 1 Parameter checksum 1-1: 0 2 2 Tariff program number 1-1: 0 2 0 Firmware checksum 1-1: C 65 Checksum of configuration parameter

Time / date

1-1: 0 9 1 Actual time 1-1: 0 9 2 Actual date 1-1: 0 51 Current season 1-1: 0 9 5 Current day of the week 1-1: C 63 Remaining time in interval

Pulse constant / transformer ratio

1-1: 0 3 0 Pulse constant RL , active energy 1-1: 0 3 1 Pulse constant RL , reactive energy 1-1: 0 3 3 Pulse constant RA , active energy 1-1: 0 3 4 Pulse constant RA , reactive energy 1-1: 0 4 2 Current transformer ratio 1-1: 0 4 3 Voltage transformer ratio

Demand reset

1-1: 0 1 0 Demand reset count 1-1: C 70 Reset / Tariff source for energy and demand 1-1: 0 1 2 xx Date of demand reset 1-1: 0 1 3 xx Time of demand reset 1-1: 0 9 0 Number of days since last demand reset 1-1: C 61 Date of last demand reset 1-1: C 63 Resting time of actual demand interval



Demand measuring 1-1: 0 8 0 Actual demand interval 1-1: 1 4 0 +P, actual maximum demand M0 1-1: 1 5 0 +P, demand of last interval M0 1-1: 1 6 1 xx +P, demand with time/date stamp, M 1 1-1: 1 2 1 xx +P, cumulative demand, M1 1-1: 1 6 1 xx +P, demand with time/date stamp, M 2 1-1: 1 2 1 xx +P, cumulative demand, M2 1-1: 1 6 1 xx +P, demand with time/date stamp, M 3 1-1: 1 2 1 xx +P, cumulative demand, M3 1-1: 1 6 1 xx +P, demand with time/date stamp, M 4 1-1: 1 2 1 xx +P, cumulative demand, M4 1-1: 2 4 0 -P, actual maximum demand M0 1-1: 2 5 0 -P, demand of last interval M0 1-1: 2 6 1 xx -P, demand with time/date stamp, M 1 1-1: 2 2 1 xx -P, cumulative demand, M1 1-1: 2 6 1 xx -P, demand with time/date stamp, M 2 1-1: 2 2 1 xx -P, cumulative demand, M2 1-1: 2 6 1 xx -P, demand with time/date stamp, M 3 1-1: 2 2 1 xx -P, cumulative demand, M3 1-1: 2 6 1 xx -P, demand with time/date stamp, M 4 1-1: 2 2 1 xx -P, cumulative demand, M4 1-1: 3 4 0 +Q, actual maximum demand M0 1-1: 3 5 0 +Q, demand of last interval M0 1-1: 3 6 1 xx +Q, demand with time/date stamp, M 1 1-1: 3 2 1 xx +Q, cumulative demand, M1 1-1: 3 6 1 xx +Q, demand with time/date stamp, M 2 1-1: 3 2 1 xx +Q, cumulative demand, M2 1-1: 3 6 1 xx +Q, demand with time/date stamp, M 3 1-1: 3 2 1 xx +Q, cumulative demand, M3 1-1: 3 6 1 xx +Q, demand with time/date stamp, M 4 1-1: 3 2 1 xx +Q, cumulative demand, M4 1-1: 4 4 0 -Q, actual maximum demand M0 1-1: 4 5 0 -Q, demand of last interval M0 1-1: 4 6 1 xx -Q, demand with time/date stamp, M 1 1-1: 4 2 1 xx -Q, cumulative demand, M1 1-1: 4 6 1 xx -Q, demand with time/date stamp, M 2 1-1: 4 2 1 xx -Q, cumulative demand, M2 1-1: 4 6 1 xx -Q, demand with time/date stamp, M 3 1-1: 4 2 1 xx -Q, cumulative demand, M3 1-1: 4 6 1 xx -Q, demand with time/date stamp, M 4 1-1: 4 2 1 xx -Q, cumulative demand, M4 1-1: 0 5 1 1 Overload threshold 1 1-1: 0 5 1 2 Overload threshold 2

Energy measurement 1-1: 1 8 0 xx +A, active energy total, T0 1-1: 1 8 1 xx +A, active energy, T1 1-1: 1 8 2 xx +A, active energy, T2 1-1: 1 8 3 xx +A, active energy, T3 1-1: 1 8 4 xx +A, active energy, T4 1-1: 2 8 0 xx -A, active energy total, T0 1-1: 2 8 1 xx -A, active energy, T1 1-1: 2 8 2 xx -A, active energy, T2 1-1: 2 8 3 xx -A, active energy, T3



1-1: 2 8 4 xx -A, active energy, T4 1-1: 3 8 0 xx +R, reactive energy total, T0 1-1: 3 8 1 xx +R, reactive energy, T1 1-1: 3 8 2 xx +R, reactive energy, T1 1-1: 3 8 3 xx +R, reactive energy, T3 1-1: 3 8 4 xx +R, reactive energy, T4 1-1: 4 8 0 xx -R, reactive energy total, T0 1-1: 4 8 1 xx -R, reactive energy, T1 1-1: 4 8 2 xx -R, reactive energy, T2 1-1: 4 8 3 xx -R, reactive energy, T3 1-1: 4 8 4 xx -R, reactive energy, T4 1-1: 5 8 0 xx R1, reactive energy total, T0 1-1: 5 8 1 xx R1, reactive energy, T1 1-1: 5 8 2 xx R1, reactive energy, T2 1-1: 5 8 3 xx R1, reactive energy, T3 1-1: 5 8 4 xx R1, reactive energy, T4 1-1: 6 8 0 xx R2, reactive energy total, T0 1-1: 6 8 1 xx R2, reactive energy, T1 1-1: 6 8 2 xx R2, reactive energy, T2 1-1: 6 8 3 xx R2, reactive energy, T3 1-1: 6 8 4 xx R2, reactive energy, T4 1-1: 7 8 0 xx R3, reactive energy total, T0 1-1: 7 8 1 xx R3, reactive energy, T1 1-1: 7 8 2 xx R3, reactive energy, T2 1-1: 7 8 3 xx R3, reactive energy, T3 1-1: 7 8 4 xx R3, reactive energy, T4 1-1: 8 8 0 xx R4, reactive energy total, T0 1-1: 8 8 1 xx R4, reactive energy, T1 1-1: 8 8 2 xx R4, reactive energy, T2 1-1: 8 8 3 xx R4, reactive energy, T3 1-1: 8 8 4 xx R4, reactive energy, T4

1-1: 1 9 0 xx +A, active energy since last demand reset, T0 1-1: 1 9 1 xx +A, active energy since last demand reset, T1 1-1: 1 9 2 xx +A, active energy since last demand reset, T2 1-1: 1 9 3 xx +A, active energy since last demand reset, T3 1-1: 1 9 4 xx +A, active energy since last demand reset, T4 1-1: 2 9 0 xx -A, active energy since last demand reset, T0 1-1: 2 9 1 xx -A, active energy since last demand reset, T1 1-1: 2 9 2 xx -A, active energy since last demand reset, T2 1-1: 2 9 3 xx -A, active energy since last demand reset, T3 1-1: 2 9 4 xx -A, active energy since last demand reset, T4 1-1: 3 9 0 xx +R, reactive energy since last demand reset, T0 1-1: 3 9 1 xx +R, reactive energy since last demand reset, T1 1-1: 3 9 2 xx +R, reactive energy since last demand reset, T2 1-1: 3 9 3 xx +R, reactive energy since last demand reset, T3 1-1: 3 9 4 xx +R, reactive energy since last demand reset, T4 1-1: 4 9 0 xx -R, reactive energy since last demand reset, T0 1-1: 4 9 1 xx -R, reactive energy since last demand reset, T1 1-1: 4 9 2 xx -R, reactive energy since last demand reset, T2 1-1: 4 9 3 xx -R, reactive energy since last demand reset, T3 1-1: 4 9 4 xx -R, reactive energy since last demand reset, T4 1-1: 5 9 0 xx R1, reactive energy since last demand reset, T0 1-1: 5 9 1 xx R1, reactive energy since last demand reset, T1 1-1: 5 9 2 xx R1, reactive energy since last demand reset, T2



1-1: 5 9 3 xx R1, reactive energy since last demand reset, T3 1-1: 5 9 4 xx R1, reactive energy since last demand reset, T4 1-1: 6 9 0 xx R2, reactive energy since last demand reset, T0 1-1: 6 9 1 xx R2, reactive energy since last demand reset, T1 1-1: 6 9 2 xx R2, reactive energy since last demand reset, T2 1-1: 6 9 3 xx R2, reactive energy since last demand reset, T3 1-1: 6 9 4 xx R2, reactive energy since last demand reset, T4 1-1: 7 9 0 xx R3, reactive energy since last demand reset, T0 1-1: 7 9 1 xx R3, reactive energy since last demand reset, T1 1-1: 7 9 2 xx R3, reactive energy since last demand reset, T2 1-1: 7 9 3 xx R3, reactive energy since last demand reset, T3 1-1: 7 9 4 xx R3, reactive energy since last demand reset, T4 1-1: 8 9 0 xx R4, reactive energy since last demand reset, T0 1-1: 8 9 1 xx R4, reactive energy since last demand reset, T1 1-1: 8 9 2 xx R4, reactive energy since last demand reset, T2 1-1: 8 9 3 xx R4, reactive energy since last demand reset, T3 1-1: 8 9 4 xx R4, reactive energy since last demand reset, T4

Pulse inputs x-2: y 8 0 Energy T0, pulse input 1

x: medium (electricity, gas or water) y: energy type (active, reactive)

x-3 y 8 0 Energy T0, pulse input 2 x: medium (electricity, gas or water) y: energy type (active, reactive)

x-4 y 8 0 Energy T0, pulse input 3 x: medium (electricity, gas or water) y: energy type (active, reactive)

x-2: y 9 0 Energy T0 since last demand reset, pulse input 1 x: medium (electricity, gas or water) y: energy type (active, reactive)

X3: y 9 0 Energy T0 since last demand reset, pulse input 2 x: medium (electricity, gas or water) y: energy type (active, reactive)

x-4: y 9 0 Energy T0 since last demand reset, pulse input 3 x: medium (electricity, gas or water) y: energy type (active, reactive)

x-2: 0 7 y Pulse constant RL, Input 1 , active energy x: medium (electricity, gas or water) y: energy type (active, reactive)



Errors and warnings 1-1: F F Fatal errors 1-1: F F 1 Non fatal errors 1-1: F F 2 Warnings 1-1: C 7 0 Number of 3-phase power outages 1-1: C 7 1 Number of outages in phase in L1 1-1: C 7 2 Number of outages in phase in L2 1-1: C 7 3 Number of outages in phase in L3 1-1: C 52 Start date of last 3-ph. Outage



1-1: C 53 Start time of last 3-ph. Outage 1-1: C 54 End date of last 3-ph. Outage 1-1: C 55 End time of last 3-ph. Outage 1-1: C 56 Total duration of all 3 phase power outages

Status information

1-1: C 3 Status if input/outputs 1-1: C 4 Status of internal control inputs 1-1: C 5 Status of operational states 1-1: C 66 Status of internal ripple receiver relays 1-1: C 57 Number of communication processes 1-1: C 60 Date of last communication 1-1: C 2 0 Number of parameterization / Password uses 1-1: C 2 1 Date of last parameterization 1-1: C 6 0 Battery hour counter 1-1: C 71 Counter for terminal cover removals

Instantaneous values

1-1: 31 7 0 Current phase L1 1-1: 51 7 0 Current phase L2 1-1: 71 7 0 Current phase L3 1-1: 32 7 0 voltage phase L1 1-1: 52 7 0 voltage phase L2 1-1: 72 7 0 voltage phase L3 1-1: 81 7 00 Phase angle of voltage phase L1 1-1: 81 7 10 Phase angle of voltage phase L2 1-1: 81 7 20 Phase angle of voltage phase L3 1-1: 81 7 40 Phase angle of current phase L1 1-1: 81 7 50 Phase angle of current phase L2 1-1: 81 7 60 Phase angle of current phase L3 1-1: 33 7 0 Power factor, phase L1 1-1: 53 7 0 Power factor, phase L2 1-1: 73 7 0 Power factor, phase L3 1-1: 34 7 0 Frequency, phase L1 1-1: 54 7 0 Frequency, phase L2 1-1: 74 7 0 Frequency, phase L3

1-1: 1 7 0 Active demand, +P, total 1-1: 21 7 0 Active demand, +P, phase L1 1-1: 41 7 0 Active demand, +P, phase L2 1-1: 61 7 0 Active demand, +P, phase L3 1-1: 2 7 0 Active demand, -P, total 1-1: 22 7 0 Active demand, -P, phase L1 1-1: 42 7 0 Active demand, -P, phase L2 1-1: 62 7 0 Active demand, -P, phase L3 1-1: 3 7 0 Reactive demand, +Q, total 1-1: 23 7 0 Reactive demand, +Q, phase L1 1-1: 43 7 0 Reactive demand, +Q, phase L2 1-1: 63 7 0 Reactive demand, +Q, phase L3 1-1: 4 7 0 Reactive demand, -Q, total 1-1: 24 7 0 Reactive demand, -Q, phase L1 1-1: 44 7 0 Reactive demand, -Q, phase L2 1-1: 64 7 0 Reactive demand, -Q, phase L3



1-1: 9 7 0 Apparent demand, +S, total 1-1: 29 7 0 Apparent demand, +S, phase L1 1-1: 49 7 0 Apparent demand, +S, phase L2 1-1: 69 7 0 Apparent demand, +S, phase L3 1-1: 10 7 0 Apparent demand, -S, total 1-1: 30 7 0 Apparent demand, -S, phase L1 1-1: 50 7 0 Apparent demand, -S, phase L2 1-1: 70 7 0 Apparent demand, -S, phase L3

1-1: 31 7 n n. harmonic in the current L1 (n=2,3, .. 15) 1-1: 51 7 n n. harmonic in the current L2 (n=2,3, .. 15) 1-1: 71 7 n n. harmonic in the current L3 (n=2,3, .. 15) 1-1: 32 7 n n. harmonic in the voltage L1 (n=2,3, .. 15) 1-1: 52 7 n n. harmonic in the voltage L2 (n=2,3, .. 15) 1-1: 72 7 n n. harmonic in the voltage L3 (n=2,3, .. 15) 1-1: 31 7 99 Total harmonic distortion, current L1 1-1: 51 7 99 Total harmonic distortion, current L2 1-1: 71 7 99 Total harmonic distortion, current L3 1-1: 32 7 99 Total harmonic distortion, voltage L1 1-1: 52 7 99 Total harmonic distortion, voltage L2 1-1: 72 7 99 Total harmonic distortion, voltage L3

Load profile / log file

1-1: P 98 Log file 1-1: P 01 Load profile of billing data 1-1: P 02 profile of instrumentation values



21.2 Connection diagrams

Fig. 19: 4-wire meter for CT connection

Fig. 20: 4-wire meter for CT- and VT-connection



Fig.21: 3-wire meter for CT- and VT-connection

Fig. 22: 4-wire meter without connection of the neutral



Fig. 23: 4-wire meter without connection of the neutral